I started knitting on smaller, new needles last night for a while, and noticed some tingling in my left hand. I can still move it and it functions normally, but it seemingly stopped. I started crocheting today and the tingling has returned and has been going on for about an hour. Also, some parts of my left arm were a little sore but I rubbed it and it went away. The tingling is light, but still annoying and has me concerned--when will it subside? I am 17 years old BTW, if age bears anything on this. I don't think it's connected, but my toes have been twitching on and off for about 2 or 3 years now -- I attributed it to growing but I'm not sure now, as my big toes have started twitching (the twitching has since subsided) and last night my left leg twitched like crazy, on the left side of the leg below the kneecap and on the top of the calf. I could see it twitching. When my twitching first starts, it's always my small toe--it twitches like maaaaad. Is this nothing or a sign of something more?