Read thru the messages in this thread:
http://www.cancercompass.com/message-board/message/all,29969
I believe it is in the first response that a possible remedy for the bone pain is given (Yes, the message thread is about aromasin, but aromasin and arimidex are the same type of drug - aromatase inhibitors - and the side effects are much the same for the two drugs, so I expect that relief for symptoms can be achieved much the same way.)
Please also read through my response on this message thread.
There have been other messages about tamoxifen, aromasin, and arimidex - I believe that from time to time there have been other remedies given that women found helpful. You might do a search on cancer compass for messages on these drugs - will take a little bit of time and patience, but might be fruitful.
Wishing you the best,
Tre