Thanks everyone for your replies. I looked at the OTC threads and saw gas is a common side effect of calcium, which I didn't know before.Here are the ingredients of the Twinlab Calcium Citrate caps I was taking: Calcium from tricalcium citrate, magnesium from magnesium oxide, magnesium aspartate, gelatin, purified water, MCT, croscarmellose sodium, magnesium stearate. Wonder if "aspartate" is related to "aspartame"?I stopped all 3 suspect foods to get some relief! The odd things were: it snuck up on me, I didn't become aware of the problem until it was so bad I was taking bentyl with each meal and simthicone at least 3 times a day. Preoccupied with job hunting. Also I didn't get any of the indigestion I usually get with a flare-up, that would have gotten my attention.I planned to do as kmottus says and add the suspect foods back one at a time. In my previous experiments with stevia I ate it every day and noticed symptoms after 2 weeks. I sprinkled it on bagels, I have to have something, it was that or equal. But now I use plain cinnamon instead, so it may not be necessary to use stevia much anymore. It would be nice to be able to have sweets occasionally, but oh well. I had noticed pain and spasms after eating turky burgers, that's why I suspected the mustard. Yesterday I ate a burger without mustard and got the same pain. I didn't get this pain when I first began eating them, so I don't know what's changed. I may be eating too many potato chips with them, I'll try rationing.
I already eat spinach every day and I've learned to put oatmeal in the bread I make with my bread machine. This is a good alternative to whole wheat bread, which I can't have because it causes pain. I know if I got a calcium deficiency my nails would get weak and break off, and so far they're strong, so I'm not particularly worried. This is what I get for listening to the nutrition articles.
I should know by now to trust my body first.