For the last 3 months, I've been getting these weird one-time twitches in my arms and legs. All of a sudden they will just jump. Sometimes it's just my had or foot that jumps. I had one just now and it was my pinky finger this time -- it typed an A for me. ;-) It only happens when I'm not moving very much, like when I'm working on a computer or watching TV. I am trying to avoid caffeine, so I only have one or two caffeinated drinks per week. Is this the start of something I should be concerned about?

Jay