Tinnitus: Temporary Relief While SCUBA Diving

I've noticed some temporary relief from my tinnitus while SCUBA diving and for a few hours after each dive. When I leave the water and try to listen for the ringing sound it is completely gone. A few hours later, it suddenly returns. I have severe chronic subjective tinnitus.

My theory as to why this happens has to do with temperature. Pressure, at depth, can be ruled out as the source of temporary relief because the cochlea and the brain are fluid filled spaces.

My theory is that as brain temperature cools it causes the AC current, in the brain, to drop causing temporary relief. A few hours later, on land, as the brain returns to its normal temperature the AC current raises back up and the tinnitus suddenly returns. It is like a light switch being turned on and off.

Researchers should be looking at brain temperature control as a possible treatment option. The water that I dive in is typically 52-56 degrees. That is about the same temperature as iced tea. I wear a 3mm hoodie and a 5-7mm wetsuit which keeps me fairly warm but cooler overall than I would be on land. I typically dive in the 25-50ft. depth range.