Thedora,
This is one complicated illness with so many different symptoms it's hard to tell what is CRPS and what is not. I do have joint pain in my ankle (possibly origional injury at least partially), knee pain (this is said to be CRPS) and hip/low back pain. I had a bone scan about two weeks ago and I have osteoperosis on the crps side. Is this because of the CRPS, age and other risk factors or all of the above? The bone scan that Little Paw was talking about can check for osteoperosis. I have received a referral to an endocrinologist and will start biphosphate treatment soon. I don't know if that answers your question or not. It's very hard to figure out and the confusion within the medical community does not help~mac