It gets the worst while doing any kind of physical
activity, standing, sitting straight, swimming in cold water or riding on a car (from shaking). I also have digestion problems such as belching, dyspepsia, poor appetite and constipation. All blood tests, except for WBC, which is too low, are normal, endoscopy shows just mild gastritis and colonoscopy is also normal. I have first degree hiatus hernia but doctors say it couldn't cause such pain.