Firstly check if it's something physical with your GP
https://www.healthline.com/health/tinnitus#causes
https://www.mayoclinic.org/diseases-conditions/tinnitus/symptoms-causes/syc-20350156
Physical Causes of Ringing in the Ears…
Tinnitus is a medical condition that is well known to cause ringing in the ears. Ringing or buzzing in the ears could also be caused by things like damage to the ear drum, a build-up of earwax, ear infection, a vitamin D deficiency, and really a variety of other completely physical based reasons.
Certain prescription medications actually list ringing in the ears as a potential side effect as well.
In addition, many electronics emit high-pitched frequencies that some people are naturally more sensitive to than others.
It has been scientifically proven that children and teenagers can hear higher pitched sounds than adults, but some adults retain better hearing longer.
But when it’s not any of the above…
And when you’ve ruled out any physical cause for what you’re hearing…
Hearing vibration, buzzing, and high-pitched frequencies can have a spiritual origin.
Spiritual Causes of Hearing Frequencies
A Sign of Spiritual Awakening
Believe it or not, hearing frequencies is actually a common sign of spiritual awakening!
As you raise your vibration and progress on your ascension path, you begin to tune into the higher vibrational realms. Your subtle and psychic senses open, and you become more aware of all that is happening beyond the limited scope of what you can normally perceive with your physical senses.
While this is all amazing, there may be a bit of an adjustment period where you experience sensations, or even symptoms like lightheaded-ness, tingling, interrupted sleep patterns, or even hearing vibrations, high-pitched frequencies and, you guessed it… experiencing ringing ears.
A Sign from Spirit Guides/ Angels
Hearing a high-pitched frequency or vibration can also indicate the presence of your spirit guides, angels, as well as other spiritual beings.
I have a spirit guide who uses a high-pitched frequency to get my attention!
It works something like this: I’m going about my day-to-day life, walking into a store, or sitting at my computer, when seemingly out of no-where I hear a clear, crisp high-pitched frequency for just a second in my left ear.
When this first happened for me, I didn’t know what it meant. Now, I know it’s a sign for me to pay attention and to tune in using my subtle psychic senses to receive the rest of the message from my guide!
The Intelligent Cosmic Vibration of God!
Another spiritual explanation for hearing a hum, high-pitched frequency or buzz in your ear not tied to the physical, is that it is the voice of God.
In other words, you may be momentarily tuning into the sound of the Universe and the Source vibration that calls All That Is into being.
The tone Aum is said to be the vibration of the Divine, and many meditators, spiritual seekers, and ascending initiates, (me included) have heard this Divine hum during or after meditation. This tone is often heard in the right ear and can happen spontaneously as well as during or after meditation.
If this happens to you, enjoy it! Take it as a good sign, and an opportunity to increase your present moment awareness even more… God presence is awaiting you, tune in!
Signalling the Ascension Shift
Hearing frequencies can also be a sort of announcement from God/ your guides/ The Universe, regarding the ascension shift and your shift in vibration.
As you may or may not be aware, our planet, and the entire universe is experiencing an ascension process… Without going too in depth here, ascension is the process of increasing and raising frequency. This is happening on a planetary, personal, and collective level. Click here to learn more about ascension!
Hearing vibrations or high-pitched frequencies offers a sort of signal that this change is happening.
The frequency may be a sign that you are awakening to the higher dimensions and tuning into more of your innate power as a divine spiritual being in physical form.
The high-pitched frequency or vibration you are hearing may also offer validation and serve as a sort of indication that the ascension process, including activating and upgrading your DNA is taking place.
An Influx of Ascension Energy
Ascension happens in waves. And since the ascension process is happening throughout our solar system and is tied to our solar system relocating to the centre of the galaxy, there are quite frequently waves of ascension energy pouring onto the planet to further elevate the vibration and carry out the ascension shift.
When a wave is peaking, and you’re tuning into a higher vibration than ever before you may hear a physical representation of this in the form of ringing, high-pitched frequency, or a buzzing in your ears.
Spiritual Interference
I don't want to scare you with this one…
But sometimes hearing tones and ringing may actually signify interference from non-physical, or even extra-terrestrial entities. Usually when this is the case the tone is in the right ear, and not the left.
Or it may be accompanied by a sense of pressure…
If you think this may be the case for the tones, you're hearing… A simple solution is to invoke psychic protection by asking your angels to help!
Surround yourself with God's love and light and know that the power of the light is far more powerful than any darkness or negativity you may be experiencing.
Clairaudience Awakening
Finally, clairaudience is otherwise known as psychic hearing. It’s the ability to hear beyond your normal physical hearing, into the realms of Spirit, angels, and higher consciousness.
If you’re in the process of opening your psychic hearing you may begin by hearing in the realm of spirit through tones, hums, and high-pitched frequency sounds.
Be open, pay attention, and relax to allow more information to flow through your psychic hearing sense.
What to Do When You’re Hearing Frequencies?
If you’re hearing high pitched frequencies, experiencing a sort of ringing in your ears, or hearing a buzzing sound, the first thing to do is explore the physical causation.
If you can rule out medical issues, hearing vibrations and high-pitched frequencies is likely a sign that you’re connecting with the higher vibrational realms.
And despite it’s positive meaning, like most ascension symptoms it can be bothersome for some people.
To manage the sounds, try spending time outside in nature, or in water.
When you do hear the sound… Pay attention! Ask your guides and angels about the meaning, then pay attention to your intuition and notice any additional feelings, ideas, or impressions you receive.
Finally, humming, chanting, or vocalizing the sound Aum, or Om yourself can help bring you into balance, and reduce any stress you may be feeling related to the frequencies you’re tuning into. Most importantly, remember you’re not alone!
Source. https://www.ask-angels.com/spiritual-guidance/hearing-frequencies/
Tinnitus: Can Melatonin Stop the Ringing?
Background
Tinnitus refers hearing a constant ringing, roaring, clicking or hissing sound. It is Millions of people in the U.S. have tinnitus. People with severe tinnitus may have trouble hearing, working or even sleeping. Causes of tinnitus include hearing loss, exposure to loud noises or medicines (particularly Valium-type drugs [benzodiazepines]). Tinnitus may also be a symptom of other health problems, such as allergies, high or low blood pressure, tumors and problems in the heart, blood vessels, jaw and neck.
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Treating Tinnitus
Treatment depends on the cause. If it is due to barotraumas from long-term exposure to load noise or music, scuba diving, or other causes of damage it is more difficult to treat. Magnesium supplementation may help, however. Other natural medicines that have been shown to be useful include:
Zinc supplementation can relieve or eliminate tinnitus in those with zinc deficiency – a common occurrence in many cases of tinnitus.
The results double-blind studies with Ginkgo biloba extract (GBE) are contradictory. People with recent-onset tinnitus are more likely to respond to GBE compared to those who have had tinnitus for at least 3 years.
Forty-seven percent of patients with tinnitus are deficient in B12. Many people with low B12 levels experience complete resolution of their tinnitus when given methylcobalamin. Take 2000 mcg twice daily for one month and then reduce it to 1000 mcg daily as a maintenance dose.
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New Data:
A previous study demonstrated that 3 mg of melatonin at bedtime significantly improved tinnitus as well as sleep quality. In a new double-blind, crossover clinical trial 61 adults with chronic tinnitus were randomized to receive 3 mg melatonin or placebo nightly for 30 days followed by a 1-month washout period before switching over to the other treatment. Results demonstrated very convincingly that melatonin was associated with a statistically significant decrease in tinnitus intensity and improved sleep quality in these patients with chronic tinnitus. Melatonin was most effective in men, those without a history of depression, those who have not undergone prior tinnitus treatments, those with more severe and bilateral tinnitus, and those with a history of noise exposure.