Does Coming Off Birth Control Pills Cause Tender Breasts And Nausea?

Hi, I'm 24 years old and just recently(3 months ago) went off of the pill. I have not had a period since. I do have pcos. My boyfriend and I do have unprotected sex. Right after I stopped taking the pill, my breasts started to become tender, very moody, tired and irritable. I just recently started to feel nauseous in the a.m. but right after I eat something I feel better. I've taken pregnancy tests and they all have been negative. Are any of these things that are happening to me related to my hormones trying to adjust to me not being on the pill anymore?