Is this because of PCOS?

Hi, I'm 19 years old, and I have PCOS (Polycystic Ovarian Syndrome) and I haven't had my period for a very long time. Often, I have horrible sexual urges that cause me to become depressed or angry. My body becomes very sensitive to touch and feels tingly. I try to masturbate at least two times a day, but it really isn't enough. I also had recent surgery to remove a dermoid cyst on my ovary. In addition, I've been taking Metformin to bring my periods back and tried to excercise and go on a diet, but nothing seems to be working. Also, this may sound stupid, but every time I hear a baby crying or babbling, I feel really strange emotions and tears come to my eyes. It's happiness, annoyance, but also something else. I start to want sex more than ever when that happens. I really don't understand this.

Please reply with mature answers only and no questions of "do you have a boyfriend?". Also, please don't suggest I go to a therapist or a professional. This is really starting to scare me.