What can a burning sensation in your upper abdomen mean?

Possible PUD?: There are a lot of possibilities, but your description of burning stomach pain raises the probability of gastritis ; ulcers. Stop any non-prescribed nsaid's (aspiriin, advil, aleve, (naproxen) motrin, etc.) ; start an otc acid reducer (like Prilosec otc, Prevacid 24hr). Seek emergency care if lightheaded, worsening symptoms, vomiting coffee ground material or passing black stool or blood. Your doc can help.