Hi Angie,
I started on Arimidex 12 months ago and yes it does give you aches and pains but I have really ramped up the amount of exercise
I do and the results have been fantastic. I don't need any pain relief and the only pain I get is stiffness if I stay in the car too long. I walk for 45 mins each day, do Aqua aerobics in the shallow end of the pool so it becomes weight bearing and do light gym work. I had my 12 months check up and my bone density is up ( yahoo ) and all blood test results are great.
My advice is get a fit bit flex and count your steps, get a dog that demands a walk everyday and have lots of breaks at work when you stretch and move. It takes a while but your body will cope.
Good luck, Sue