Suffering with Letrozole side-effects weeks after coming off it…

I think it has been discussed a lot already.. sorry… 55 y.o stage 2 ILC with mastectomy, preventative mastectomy on other side, radiotherapy. Finished all by end June this year.

But I just need some HOPE that Letrozole side effects will wear off eventually… After 5 months of taking Letrozole, and going ok, I suddenly had burning pain in my wrists, hands, knees, thighs, many tender to touch, was hobbling around plus on sore feet, not even being able to clear up the kitchen after hubby cooks.. Not able to complete a shift at work.. 

I tried exemestane six weeks after stopping Letrozole. But for only 2 days as my wrists burned even more.

I’m now 7-8 weeks post Letrozole and trying to at least go to stretch classes three times a week, and go for walks. Still relying on regular Panadol/Nurofen,  can’t clear the kitchen up in the evening or go to work. Just about collapse into bed at night to make everything stop burning. When will it ever end?!!