Has anyone on SSRI's, or more specifically Paxil, had menstrual changes? Or at least when they first started taking the med? I'm having my first period since starting the Paxil 2 weeks ago and it's definitely not my normal experience. Usually I have pretty bad PMS for about 10 days beforehand -- breast tenderness, bloating, headaches, cramping, mood swings, irritability, cry easily, etc. Then once it starts it's usually heavy and I'm very crampy. I didn't get ANY of the PMS symptoms this month. I thought my period was going to be late or something. I was really surprised when it started right on time today. In addition to the absence of PMS, my period is super light, which is unusual for me. Since it coincides with starting the Paxil I was just wondering if this might be a side effect? I'm not complaining about the lack of PMS, but anything abnormal with my body concerns me. Especially with my cycle, because I really want to have kids some day and I'm nervous about chemicals affecting my fertility. Any thoughts?