Tinnitus is a symptom of something else, usually hearing loss. If something in your ear is damaged then the brain can't translate the signals it gets from the ear and will often just turn that into a noise.. like a ringing sound. Your brain will also learn to dampen or ignore those sounds after time.
So.. if something has happened that has increased your hearing loss or something is effecting your brains ability to filter out your tinnitus will go up in volume.
If there's not an incident that has caused further ear damage, then it could be many things, lack of sleep, another medication, stress, try and work out anything your doing or taking that's different from before. If you cant think of anything.. get to a doctor could be something going on inside your head/ inner ear.
One of the best things you can do to lower your tinnitus is get hearing aids, miracle off the shelf herbal remedies.. are snake oil at best.
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