AT or not? Update. I raced a triathlon on Sunday and there was no pain during. Afterwards it was very sore to the touch and I though yes it must be AT but after an afternoon of ice it is not sore anymore? This is not what I had before where it got very sore after a race and stayed that way for a couple of months? Surely AT is either there or it's not there - it doesn't come and go. Someting is irriating to the sheath of the tendon I think causing the inflamation and soreness which quickly goes? Could it be a trapped nerve somewhere? I have heard of someone thinking he had AT but it ended up being a trapped nerve in his glute? Now this morning my right glute is sore which may just be coincidence?