I’m 24 female and frequently get heartburn after eating homemade turkey sandwiches for lunch. Nothing crazy turkey, wheat bread, mayo. Most sites online say that is one of the best meals to eat to NOT get heartburn. Any explanation? People are all different. If turkey sandwiches give you heartburn – don’t eat them. Also, you might try taking a Prilosec daily for a couple of weeks and see if that helps your problem.