Thanks so much, Kim for your thorough answer!
What I can add to what I've said is that loose stools is less a problem (usually) for me than the other symptoms: headache, exhaustion, pain, rapid heart and pulse. I need to rest a while, at least 20 minutes but sometimes as much as a hour after eating. Add that regimen to eating frequently and slowly, and that's most of my day!
Yes, what I eat makes a difference. No milk products (some yogurt ok). No alcohol. Little sugar.
If this information adds to what you can tell me, I would appreciate hearing from you again. Thanks a lot for taking the time and interest.
Cheers, Marjorie