Thank you so much to everyone who has responded. It means a lot.
I think the day I posted this might have been the single worst day of my entire life. That was Friday. It is now Sunday, and I'm feeling remarkably better.
I'd refused to go to the ER because it would have been my third ER visit in as many weeks. I was inpatient for several days after that 2nd ER visit, and while they physicians were able to stabilize me somewhat with IV steroids and potassium, I'm still not healed. I didn't see the point in going back to the ER.
At any rate, by the grace of God, I happened to catch a nurse in my GI's office who called in a Zofran refill at 4 p.m. on a Friday. It has allowed me to keep small meals down this weekend. I feel SO much better, although I have a very long way to go.
Last thing I'll say: MarkWithIBD, this makes SO much sense! I don't know why it hadn't occurred to me. " I also think that when the immune system is so intensely active against the bowel, the body won't commit as much resource to stomach digestion."
Thank you for sharing this perspective. I believe it might be what's going on with me. It looks like I will have to keep surviving on small bowls of grits and bacon bits (I'm from Texas. It's a Southern thing) -- easy on the bacon.
Again, thank you so much for everyone's comments.