side effects of testerone in women

What can excessive testerone in women do? Thank you

I suffered from Polycystic Ovary Syndrome and I experienced excessive facial hair grow and increased sexual desire. I talked to my gynecologist about it and she told me that fat cells can turn estrogen to testerone. I was overweight though. Some women experience irregular periods as well but I had no problems with my periods. Strange. Do you think you may be in a similar situation?