I am a 27 year old woman, and I have been having severe, soaking night sweats on and off for about 3 years. I have seen my doctor about this, and he tested me for tuberculosis, thyroid problems, hormone disorders, and even a full CT scan looking for lymphoma. Everything was normal, and my doctor was stumped. I have been taking Effexor for the past 2 years on and off, but the night sweats started before I started taking the drug and continued even when I hadn't taken it in about 9 months. My mother had menopause rather early (at age 36), but my doctor ruled out early menopause after blood tests. The sweating seems worse when I sleep very heavily and have more vivid dreams. What is going on with me?