Limpy, We can never rule out anything, can we?

Stupid AI diseases! If your tissues aren't healing, have you been tested for a B12 deficiency? Other AI issues or diabetes? Do you have enough good bacteria? Think about it. Stomach upset can happen while on antacids! They get rid of good bacteria. So maybe think about adding acidophilus, if you haven't done that already. I'm sorry you've been through so much.
Ditto for you, Lisa.
Annie