My wife experiencing some digestion trouble for the past 15 days. Whatever she eats she can't digest it without drinking any coke or 7up. She said, when I eat, it feels like the food didn't go down and it stays on the chest. She can't burp. And she's feeling pain on her whole back and in her upper abdomen. I have scanned her liver, urinary bladder, kidneys, urethra and most of her lower abdomen. Every test we do it says everything is normal. But still she can't get a relieve from her pain. I don't know what to do anymore. Please help me. P.s. She's not pregnant she on her period now.