Gastritis/ Peptic Ulcer or gall bladder?

[advent23dog]

Over this last years I have had 4 sick bugs, the last 3 sick bugs I have had severe heart burn which normally last 3 weeks then goes. 6 weeks ago I started waking up in the night with what I can only describe as heart burn - severe pain in my chest. I had heartburn during pregnancy and this pain feels nothing like this. Its just an intense pain in my chest it varies from the middle to all over the chest to just one sided, it feels like a cramping or crushing feeling. It starts before I eat and gets worse after wards. I also have pain on and off just under my right rib cage, also lately the smelliest light tan/yellow stools. I just feel like I have a bug, I'm not convinced its just heartburn or an ulcer. My doctor is testing me for H Pylori and said if it comes back negative I am to have an endoscopy. Do you think this sounds like gallbladder?