Hi I Am 54 And Was Thought To Have Had

hi I am 54 and was thought to have had ms for 26 years however it turned out to be dysautonomia and I had the ccsvi procedure done 3 years ago. That is where they ballooned my jugular veins because they were crimped and narrowed and putting pressure on my vegas nerve. I have since had 3 episodes of when I have overdone and it is hot where my vision looks like pixel flashing, I break out in a sweat and feel like my sugar is low. I get cooled down lay down and eat and it goes back to normal. It seems to also happen when there are bright lights or where the sun reflects off of bright objects.