my period was never regular ,but for some weird reason after about 2 weeks after starting phentermine, i noticed i was spoting more and more, i asked my dr. what was going on he said it was a common side effect, but this month it was different, first it was some spotting but now it like FULL ON BLEEDING for over 2 WEEKS. I've lost over 35lbs. in the 2 months i've been taken the pills but i don't know what i should do about the bleeding.