Today I've been having a muscle in my right arm flex randomly . Its not enough to move my arm , at best it just makes the skin move a little bit, and I feel it flexing . Is it normal-ish or should I see a doctor or something? Also could it be related to my weights I moved my partially built boflex :doh:up to 210 a while ago but, lately my reps have been harder. I'm skipping the weights tonight . What should I do?