I made a list in another response, but I'll repeat it here for your benefit. Phytohaemagglutinin is present in most beans, but kidney, cannellini (white kidney), fava, and broad beans, and some varieties of green beans, have much higher levels. They should be safe if they're boiled for long enough (10 minutes), but even that doesn't completely remove all of the toxin.
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Maybe you just have a tender tummy.
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