... major side effects but recently I have started to feel some slight vertigo and nausea. I got very frightened and went to my doctor right away because I thought that my medicine was going to stop working and that something very bad was about to happen. My doctor did an ekg, checked my blood pressure and pulse and everything was completely fine. I would describe my vertigo as a rolling sensation. It feels like I just got off a boat and that I am still moving. It comes and goes. My nausea is much much better. Has anyone else experienced this. I feel depressed and I can't seem to get out of it