The last 2-3 years I get sharp pains in each side of the groin at the top of legs. And pelvic area in general. Flutters of pain in my lower back to. It could last a week or weeks then I won't get it again for a while. Could this be endo ? I've had an ultrasound which showed no signs of endo. I am on the pill and today my symptoms have started after coming off my period yesterday.