Hi. I just started an exercise program two weeks ago after being mostly sedentary for a year. I have been doing 40 minutes of aerobics three mornings a week. The other day, this weird thing started happening: my left bicep periodically begins twitching for no discerbible reason. It keeps it up for 30-90 seconds or so. This has ben happening several times a day. It doesn't hurt; it feels as if one of those things that make bubbles in fishtanks has started up under my skin. Has anyone ever experienced anything like this before? Is it a bad thing? Good thing? Normal sedentary-body-returning-to-movement thing? Any advice would be helpful. Thanks.

You could be low on calcium. Others here know more about this than I do but I know for a fact that night time leg cramps can be ended by adding a second calcium tablet at the end of the day (opposite from the first one you take in the morning). Your body can only absorb just so much calcium at a time so instead of taking two tablets at one time and excreting the "extra" in your urine, split them up.

Me, too! I started drinking more water! I think it's a cure-all! It seems to have worked for me.

Thanks for the suggestions! I didn't know about splitting up the calium -- I'll give it t try.