Just spicy stuff it seems. Its been like this for the last 12 years or so but has gotten worse and the pain starts even faster. Sometimes I really can't help it and have to eat that stuff. But if I just don't eat the pepper part of the the giardiniera, or just the cauliflower and carrots in the pickled stuff from the mexican joint I'm fine... Just seems to be the peppers that do me in. But not when they're fresh? Oh but the vlassic hot banana pepper rings are fine. Weird...
Might be gastric reflux. Try a couple different types of antidotes and see if that makes a difference for you. Generic is fine, from my experience, but some swear by only the brands.