Hi, Dan,
It sounds like your problems may be from past mechanical damage. I find that I can only walk about 10-15 minutes at a time. We joke that it's my joints overheating, but I think it's mechanical damage and something that I'll have to live with. But the Enbrel has kept my flares under control and I have had no iritis flares either. Before Enbrel, I lived on Vicodin and Percocet, had 4-5 iritis flares/year, and lived in a wheelchair.
I had results almost from the first shot and continued to improve for several weeks. I have stayed at that level ever since. I wish you wonderful results and that you feel sooo good you'll want to ride the roller-coaster with Betty.

Hugs,
Cindy
Life may not be the party we hoped for, but while we are here we might as well dance.