Sorry to hear that. I don't have the answer to your particular problem but I had a problem with my heel that swollen red etc it was like that for 12 months. Nothing was found on testing. I also do get sore hips with AS and was given a cortizone shot in my hip which miraculously totally fixed my heel instantly. I'm not advocating getting a cortizone shot but it may be part of the AS. Mine was and that's why the cortizone fixed it.
