Hi, I m a 27F, no children. lately I ve been feeling dizzy, light-headed, and mildly nauseous. This can come and go and seems to have been happening in the last couple weeks. My coordination and reflexes seem fine. I have also been experiencing late and very light periods, with only spotting. my last ovulation was extremely painful and this, too, is highly unusual. I am currently taking Venlafaxine (the last 8 weeks) and Trazadone (about 5 weeks) for GAD, insomnia and depression. They seem to sit fine with me. What could be going on?