PCOS or just hormones??

Hi ladies! I've always struggled with acne and excessive hair growth, but I've never really thought too much about it because I've never had a problem with my period. I've recently found out about PCOS and I was wondering if it could be that or just maybe excessive testosterone or low estrogen levels? I'm in the medical profession but most doctors I talk to don't know too much about PCOS. Any tips or stories that might help differentiate between the two conditions would be helpful! I have a Gyno appt coming up and I'd like to know what to ask! Thank you!