suffer from PCOS, but being on pill always helped keep weight down. Came off pill (had baby and was breastfeeding), weight shot up. Now back on pill, weight not going back down. Recently took up running to try to shift weight, and now up to running approx. 10 miles per week, and not a pound has dropped off. I was recently told my thyroid was under active, but a recent blood test showed that this had returned to normal, but still weight not shifting....don't know what to try now!!!!