Thinking of you! Hot flashes interrupt sleep which can make for a long day-not sure where you live but I'm in MA and air is so dry in our home with heat on and Letrozole not exactly helping with that:) I have a humidifier that I blast on high as close to me as possible which really has been helping. You're doing all the right things so hang in there. Keep us posted on your onco results - I was fortunately able to skip chemo and finished 19 full breast radiation treatments end of January. I recently started the Letrozole and am dreading side effects as I realize they are cumulative. Joint pain upon waking but movement helps and I might try glucosamine and collagen type II as many on this site have recommended. Vaginal dryness has really been a side effect for me and my onco prescribed those little vaginal low dose estrogen suppositories that I'm going to try - while I'm 57 and estrogen positive both my gyno and onco recommended. Hang in there!!!!