Hi Ellie
I have been on arimidex for 2 years and have had my share of aching joints etc. Have you tried any supplements. I have been taking green lipped mussel oil in capsule form for a couple of months now, and I really think it has helped, not just with my joint pain ( which hasn't gone completely) but also with my general wellbeing, I have a lot of stress in my life and I think it has helped , also my skin is nowhere near as dry as it was. I put my dog on it about 4 months ago for her stiff joints and it helped her, especially her mood and and sense of wellbeing, so I thought I'd give it a go. There are lots of different ones on the market, at the moment I'm taking Lyprinol which you can buy at discount price at Chemist warehouse. It will be interesting to see what your doctor thinks about you going off the medication.
Good Luck
Janice