Five and a half years ago, I had IDC and DCIS. I had a mastectomy. My Dr. Thought I would be a great candidate for tissue testing. It would be able to determine what my chance of a re-occurrence would be. After it was completed, my chance of a re-occurrence was at 2.3 percent. It was determined that I was able to discontinue taking Tamoxifen. It's been 2 months since I stopped taking it and 1 month since my last dose of Effexor that I was only on for a month for hot flashes. I'm wondering why I am I still having hot flashes and night sweats?