Gallbladder pain

I have had a chronic pain for 5 months. It is in the middle of my abdomen right below my rib cage. I had H pylori in May, went on antibiotics for 2 weeks. Had a scope with a biopsy and the H pylori is gone. Had an upper GI series, nothing showing. No lesions, no ulcers, no cancer. I had an ultrasound done and no gall stones. I had the radioactive IV and xray done to test the ejection level of my gall bladder, came back normal. The pain will sometimes radiate into my chest and back, also causing a headache. I take no medication and I cannot always tell what foods are going to cause me pain. When I had the gall bladder test done I had the cramping and nausea that is common with gall bladder disease. What can be causing me all of this pain?

[crambone]

ALSO SOUNDS LIKE GASTERITIS,,,IF YOUR TESTS COME BACK ALRIGHT,YOU PROB. GOT GASTERITIS...I HAVE IT AND IT AFTEN MIMICS GALLBLADDER ISSUES.