I found your post interesting, because I also had your same symptoms as well. I had surgery in 2021 for IDC stage 1A, followed by five days of radiation. For over a year I tried diligently to take Letrozole. My side effects were severe nose bleeding, trigger fingers on both hands and leg weakness.
The final straw was when my leg collapsed in a doctor's office, my head went through the wall and I injured my foot so badly, that I was in a boot for six weeks! That was it for me, I was done! I am 75 and caring for my husband with Alzheimers. That is stressful enough. So at this point, I try to just take one day at a time, count my blessings, and pray my cancer does not return.