Toe Curling Orgasm Issues

A current problem I have has to do with my left foot curling / clenching fairly tightly during orgasms. This started about a month ago. At first I thought it was cute as you hear women often curl toes during orgasm. But now during a session even while mildly stimulated it starts curling almost involuntarily. If I consciously think about it I can quickly uncurl it, but lots of times it will curl. It's also gotten to where it starts doing this during the day many hours or even a day or more after a session. Perhaps my body is in a stimulated mode that I am not fully aware of and this causes it to curl. Not sure, but it worries me a bit. I wonder if it's a sign of some type of brain disorder. The right foot / toes don't seem to want to curl at all. I've read that studies of orgasm typically (particularly in women) show it occurs in the right brain or the frontal lobe amygdaluh (or however you spell it). So perhaps right brain orgasm explains why my left foot curls as your body parts / brain are opposites / cross. Anyway, anyone have any thoughts or similar experiences with toes curling during sessions?