Devint, thank you so much for your insights! Your explanation (or, your Dr's.) helps things make much more sense now. And it explains why it can go on for days, because as it persists I lose all will to eat. Sometimes just one yogurt in an entire day - I know it's not healthy but, like you said, I lose the will to fight. I begin to spiral into "what have I done to myself? I will never feel well again."
I will try harder to keep on an eating schedule. I am so afraid of food right now, but I guess if I'm going to have diarrhea anyway, I might as well start trying some new foods!
You've really encouraged me. And, like you, boy I REALLY hope this is short-lived. I keep reminding myself I had WLS for the rest of my life, not just to hit a short-term goal. If it takes 3 months of my life to feel yucky and then feel good for 30 more years, it's an investment worth making.