The pain in your legs ---- have you tried any over the counter pain medications to see if that helps?
Try to remain calm, although it's easier said than done
It is always possible you don't have MS. As I said previously many other things would need to be ruled out. Did your Neurologist do blood work? Typically a Neurologist will order blood work to rule in/out some of the other possibilities. This requires anywhere from 10 to 12+ vials of blood.