Which of the Aromatase Inhibitors suits best, is different for everyone.
I started on Letrazole and changed to Exemestane. I'm only on one tablet a day. I take it at bedtime.
I've been on that for 3 1/2 yrs.
I think I have gotten used to it. The side effects seem less.
I had muscle tightness, particularly in the upper legs, front and back. It was painful and difficult to pick something off of the floor. This seems better now.
Poor tolerance to heat, is continuing, and also hot flushes.
I always carry a little fan. (from Temu)
I don't think Radiotherapy can cause heat sensitivity. Probably it is the tablets.
I'm also on infusions (Zometa), to increase my bone density, 6 monthly.