All I can tell you is to cut everything out that would irritate your stumica as it'll do the same for your LO.
Here's a list I was given.
No onions, garlic, a lot of dairy cut out, no spicy food, no broccoli, cabage, beans, caffine, aspertaine, peanut butter, and sea foods. Anything else you know your sensative to. I'm sure others will have more advice for you