I am 55 years ago. I went through menopause 3 years ago and was diagnosed with Atypical Ductal Hyperplasia 7 months ago. After having a partial mastectomy I had 34 radiation treatments and now take tamoxofin daily. I began having mild hot flashes after surgery but the night sweats are so severe that I wake up saoking wet (including the sheets), then get the chills and can not fall back to sleep for 2 - 3 hours. Both these increased in intensity after I began taking the tamoxofin. My doctor prescribed venlafaxine for the night sweats and hot flashed but it makes me sick. I am so tired all the time that I feel sick. Any suggestions? How about over the counter or herbal supplements? Thanks.