Those damaged hearing nerves fire spontaneously and produce a sound typically in the pitch range where the hearing is most impaired. Let's now consider some possibilities other than hearing loss which also might be related. Check with your doctor to review medications you take to see whether tinnitus is a possible side effect. Even nonprescription medications such as aspirin can be the culprit. Think about your personal reaction to stress.
Some people clench their jaw or grind their teeth.
The muscle spasms result in the perception of tinnitus. It may also be accompanied by headache, neck and shoulder pain to offer a few. Checking with your dentist may be helpful in correcting the problem and ridding yourself of the tinnitus. Tinnitus that starts suddenly and is really bothersome is certainly something to watch. At this point, I am presuming everything looks fine.