I am about 8 months out and my PMS is just crazy. I have depression and mood swings and nausea as well. I'm on the pill and have been the whole time, so I'm not sure if maybe I need a new Rx now that I'm down 114 pounds or what. But yeah it seems to be really common to have our hormones go totally out of whack after this surgery. My poor husband!
I will say it seems to have shifted over the whole time. I don't feel very sick anymore, but I do feel more depressed during that time. So maybe just monitor it and see your GYN in a few months if it doesn't ease up!