I'm 15 and I have OCD, so basically from a week I been having panic attacks about a new 'obsession', anyways, so when I'm having an anxiety attack I also get a 'muscle jerk'. For example, I'm sitting in my room, fearing/worrying then all of the sudden my leg jerks. It only happen when I'm anxious and it's just one jerk, why is that and does anyone else also get these?