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Ken, I have the kind of pain you describe, I think. I first had it in daily spells for 2 weeks. I have it consistently after I eat a certain kind of Mexican pepper (or the chemicals on the pepper), and I have it when I have spells of acid reflux that get particularly bad. All sorts of tests (from the long bout with it) showed nothing, but it is excruciating, starting with my stomach, radiating to my spine and abdomen, lasting about four hours. I take over-the-counter acid reflux medicine when I start getting stomach symptoms, but if I don't it can get so bad that I have these horrible spells. And I avoid authentic Mexican food - those episodes must be an allergic reaction of some kind.