Hi there
First of all, have you been to your GP about your symptoms? Googling is the path to ruin, I'm afraid.
The symptoms that you're describing can all very easily be caused by anxiety - I know, I've had them all at some point or other - and loads more!
Also, don't forget that MS is actually quite a rare condition. it's slightly more likely if you have a member of the family who has it, but it's not directly hereditary. My dad had MS and died when I was very young, so for years I had a complete terror of developing it.