I feel your pain bro.
I stopped competing years ago because of the wear and tear on the body, especially my left shoulder and left knee.
Then a few years ago I started to get vertigo spells and was told to NOT spar anymore until they found out what it was.
As things went the veritgo was caused by a combination of inner ear issues and other issues that can't be treated and whenever I get a got shot or my head moves to suddenly, I get a bout of vertigo that KO's me for hours.
When we who have done MA for the "martial" part suddenly lose that part, it gives us a perspective on things that we won't get.
Be grateful that you managed to get some years of competition in because those lessons will be with you always.