Idk about heartburn or hiccups but for constipation my dr kept telling me to eat apples, peanutbutter, and drink prune juice even tho it taste so nasty to me. It worked tho.
This is a catch 22 lol ... Dairy products can help heartburn but they worsen constipation. Fruit juice can help with constipation but can sometimes worsen heartburn... You can take Tums or an over the counter stool softener like mirilax
Drink water for hiccups, eat food with lots of fiber i think alot of women drink apple juice or prune juice. And heartburn idk you'd have to ask your doc just try to avoid spicy food