I've had PA since the early 80's. Tried many different meds over the years. This past April I started Enbrel injections. By July I was feeling great. Hardly any pain and energy to boot. I was ecstatic. I was able to do a few things that I hadn't been able to do in years. Then I had surgery at the end of July for something unrelated and either from the stress of the surgery itself or the anesthesia, a week after, I was in so much pain I could hardly stand it. Family doctor told me that he's heard of cases like this and that it's temprorary. Could last up to 16 weeks. But, getting of track. The Enbrel helped me the most and I'm hoping my body will come out of this set-back.