Hi VisionQuest.
I was thinking about your post later.

I wondered exactly how much B6 you were taking all that time.

Do you take B12 or D3 at all or know your blood levels?
I think deficiency in those two can cause tinnitus in some people.

Covid 19 Vaccines and Tinnitus - Healthline
Seems it can be a very rare issue after vaccination (not common at all). I hadn't heard much about that before.