Hi Julie,
I’ve been on anastrozole since December, 2017. At first I felt just fine. After about a month, I got a return of terrible hot flashes, insomnia, anxiety, headaches, followed by bone pain - heels, thumbs, neck. I was ready to go in and ask to change to another hormone blocking Med, but did a little research. I started here, on this website, in a forum about side effects. Then, I looked up research on side-effects of anastrazole, and how hot flashes should be treated in women with breast cancer.
Women with pain, insomnia, etc. tend to have more severe hot flashes. This adds to fatigue and brain mush. I thought that, if I could sleep, I would feel better. I was feeling so bad, I had to quit my job, which I loved!
I ended up asking to be started on a new (to me) Medicine for hot flashes. I was already on 75 mg of the extended release formulation of Effexor daily. I switched my Anastrazole to the morning, to decrease the insomnia a little, and went to the next Medicine on the algorhythm for hot flashes - oxybutinin. It’s supposed to relax your bladder, to make it hold more urine, and it’s used in small doses- 2.5 mg twice a day. It is really strange to me, but I was better by the next day! I slept a few hours for the first time in months, and I actually had my energy back! I didn’t sleep as well last night, but I’m still better today. The amazing thing is that my headache is gone, my bone pain is very mild, and my energy is back- all from treating the hot flashes! I had to share this, because there is hope, and I was hopeless 2 days ago!
i don’t know if stopping the anastrozole will help much. I think it builds up in your system, and has ongoing effects, but I’m not sure. Ask your doc to address your hot flashes, if you have them, and the Lord May help you as much as He helped me. God bless you! Braindoc