So I keep getting upper abdominal pain. It kinda feels like a gas pain that starts at my belly…

So I keep getting upper abdominal pain. It kinda feels like a gas pain that starts at my belly button & radiates up to my chest. & it's actually really uncomfortable. I have just been trying to breathe It out. It usually happens after I'm done eating & sometimes during and makes me puke. Also been really nauseous lately. Any idea what's going on? I have a doctors appointment today I'd tell my OB but she would probably just brush it off.