Opinions?

Kimberly
I have pcos and my doctor put me on 1000ng twice a day of metformin. It was making me really sick so he have me nausea pills to help, which they have been. But two days ago I started waking up in the morning feeling nauseous and sometimes vomitting during the day. Now today I started bleeding a little. Could I be nauseous from starting my period? Help please never had that happen.