Omg!!! I have been really worried about MS lately , started with a wired chin type twitch on left side then I started obsessing about my left arm I felt it would get tingly to much then I worried down to my left leg . Well today it got worse my left leg got this hot / icy rush down it when I had my legs crossed while sitting then it happened 2 more times in the same position BUT then it started to happen when I wasnt even sitting cross legged . I use to get the icy hot feelings before but they would happen on front on legs . Now I'm confused and scared .