I missed a week of workouts. when i started back i went full force running and lifting. i have been feeling very fatigued, have had more irregular heartbeats then usual (pulse all over the place) and bled vaginally a little yest . could it be rhabdo?

Rhabdomyolysis ?: Although heavy exercise after a week of abstinence may cause excess muscle strain b/c of the ability to sustain more strenuous workouts, it will not cause vaginal bleeding. Continued heavy exercise may alter your menstrual cycle (i.e., delay ovulation) and dysfunctional bleeding can occur from irregular estrogen levels. See your gyn physician if this continues.