Don't feed your fears by listening to others or reading. Everyone is different. My MS was diagnosed quickly by Evoked Potentials, lots of bood tests eliminating stuff like Lyme, Lupus, etc. and a LP which pinched while happening but had no after effects like headache etc. Reading too much before could have scared me to death!! See what happens to you. Yeah, knowledge is power but anxiety can be terrible. Once diagnosed I read toooooo much and many things never happened to me. The anticipation was terrible though!
Good luck. You are you and nobody else.