Joint pain, muscle stiffness

Hi all hope you had a nice Xmas. I am now on aromatase 25mg 1 a day. I am having a tough time dealing with joint pain. Especially  my shoulders wrists knees and hips.my muscles are also stiff. Hot flushes not as bad as when on letrozole. Night time is worst time. Can't sleep with the pain.i end up having to have a nap later in the day. I get up in the morning feeling very stiff but life goes on. Just keep on doing what I need to do. I have lymphodema in my left arm so here in brissy it gets very hot having to wear my garments. Oh well hope everyone's new year brings new hope for cancer research.