@Hex
I really hope things settle for you, but they guys have offered some great insight above.
My ear fullness has settled, and no nasty spikes either (touch wood).
Given that tinnitus is essentially generated by the brain, some neurologists have an interest in it. The one I saw was certainly knowledgeable and interested, but frustrated that he couldn't help more.
I was in touch with Prof. Dirk De Ridder of TRI, and he suggested low dose naltrexone. Unfortunately, this neurologist didn't want to prescribe it for me, but I'm going to find a prescriber and give it a try.
I hope you feel better soon.
I'm glad your ear fullness has settled! How's your T doing now? Is it back to normal? I came across this when looking up LDN https://www.ldnscience.org/resources/interviews-patients/sue-christiance-autoimmune-hearing-loss
It's frustrating not knowing what the cause is!