There can be different triggers, overeating just about anything is a good one, but there are others
- alcohol, particularly red wine
- black pepper, garlic, raw onions, and other spicy foods
- chocolate
- citrus fruits and products, such as lemons, oranges and orange juice
- coffee and caffeinated drinks, including tea and soda
- peppermint
- tomatoes
And there are others. When I'm having issues cinnamon is a huge trigger for me. Cold drinks were bad too. Also could not drink coffee or tea no matter caffeinated or decaffeinated. As I got better I found I could drink decaf coffee.... finally got back to tea, but it took time
I looked at a lot of web info and purchased a book or two when it was bad and they wanted to medicate me. Different people, different times, different triggers.