@sister the rheumstologist is from Sydney but visits often. We were considering prednisolone but I stack on the weight with it so we are trying conservative treatment presently. I've had it before after a weird thing with my arms years ago which was an entrapment syndrome caused by my heavy boobs...one issue I don't have now.
They are still considering just trying a different AI presently if things improve off letrozole. Which dramatically they have. Even my stiff neck issues seems to have improved. And I'm forever just rotating my hands and feet as it feels wonderful to be able to do that. This morning I could stretch my arms out. I haven't been able to do now for months. It's still tight but it's definitely better.