I used to periodically experience electric shock like sensations in my hands - especially my thumbs it would feel as if the thumb bones were broken.
Recall when I was about 18 experiencing periodic urgency - desperate need to go to the toilet but when I got there only a few drops.
By the end of schooldays I had slipped from being top or next to top of the class to being in the bottom quarter - not due to lack of studying.
Have I been ‘incubating’ m.s. for many years before dx aged 30?