I have PCOS, and i don't look like i should at all outwardly. I'm not overweight, my weight isn't even close to centered around my belly, not excess hair, just a touch of acne (from being a teenager, lol), and nothing else outwardly. My only obvious problem was that i didn't have periods. After eating low carb, i've started to regulate (yay), although i still don't think i'm ovulating...oh well, i have a few years before i have to worry about that. But yes, you could definitely have PCOS, as no one's symptoms are the same. Has your doctor checked your LH:FSH ratio? That was the deciding factor for me, because mine was way off...it's supposed to be about even, and mine was 17.3:6.4 . My LH is quite a bit higher than some ppl who have all of the symptoms!