i had those same symptoms and i finally found a doctor who told me i have gastroparesis and dysmotilty type non-ulcer dyspepsia.. basically means my stomach doesn't empty quick enough and i have chronic indigestion. i am on meds for it now. i have ibs as well, but that is just in the bowels. ask your doc about motility disorders. that might be what is wrong. getting the right meds to speed up your system might work. just sharing my situation. hope you feel better!