I was on the same "potion" of chemo as yourself. I finished cheo on 9th June and commenced taking Arimidex on 6th July. From 11 July I have been in agony with pain in my legs, arms and hands. I have, in conjunction with my GP, MO and surgeon tryig to rule out the "culprit". No one is sayig what it is caused by. I stopped taking the Arimidex on 16th August and will be off it for another 2 weeks. I was beginning to think that it really was the Arimidex as today I was able to feel "normal" for a couple of hours. However from reading your blog I am back to "square one". My MO won't have a "bar of it" being the chemo however on speaking with oncology nurses they informed me that this is how some patients are affected by chemo completion. It can last up to 6 months. I take calcium and Vit D supplements and also fish oil when I remember. It is pure agony by night time. This week I am going to try acupuncture. So I don't know what is causing my pain - have had bone testing and scans and all is good. The oncology nurse did say that it is the marrow tryig to be replenished in the bones. Whatever it is it sure is painful. I hope this information "helps" XLeonie