I took Letrozole after finishing chemo. Within a short few weeks I had extreme joint pain then a condition called “trigger finger” started. My middle finger would lock up on a 45 degree angle with extreme pain. Lots of tests and physio. After arguing with onco, I finally stopped taking Letrozole after persevering for 9 months. No more trigger finger!
Good luck with your treatment. Hopefully it doesn’t give you too much trouble.
If you do experience side effects, talk to you doctor and make sure they take you seriously.