polycystic ovary syndrome
"I was diagnosed with polycystic ovarian syndrome about 3 weeks ago.  Prior to that, I had been gaining weight for no apparent reason.  I eat clean and exercise regularly, so was at a loss for what was going on.  My periods had always been irregular, but when I went 2 mos without one, I definitely knew something was up.  I started metformin 3 weeks ago.  First 500mg and then increased to 1000 mg at 2 weeks.  Since starting, I've lost 4 lbs, got my period on time, and finally have my energy back!  Side effects have only impacted me every now and then with no rhyme or reason as to when, but well worth the positive effects."