Hi Jess. Sorry to hear you're suffering with the joint pain. It's a real bugger eh?
I'm on Letrozole and have had it from the start. It does tend to wax and wane with the weather, but for me it never goes away completely. Right now in Melbourne's cold and damp weather it is particularly bad. The pain is waking me up at night and so I'm keeping up the panadol osteo (which takes the edge off the pain but no more), with something stronger every now and then.
I've tried a variety of supplements, and acupuncture. I didn't find relief from these but they're worth trying because many do. Exercise neither makes it worse nor better.
Apart from medications I manage my pain with heat (hot water bottles/wheat bags, toasting my ankles in front of the heater (I'd love a heat lamp), hot baths), and osteopathy. When not in Stage 4 lockdown I have it once a fortnight when I can afford it. The GP gave me a Care Plan which helps.
As @Zoffiel said, we're all different. It takes some grit and determination to stay on AIs if you have trouble with them. Hang in there. K xox