I called my GI this morning too at about the same time and I didn't get a call back either. However, my GI doesn't call back - her "medical assistant" does and it is so frustrating because she doesn't seem to have much knowledge on any kind of medical issue. She's just a go-between me and the GI. If I ask her a question, she can't answer it. I think I will look for a new doctor if the situation gets too bad.
UC, diagnosed 2/07
SCD 7 months
Assorted vitamins and probiotics