I have the Same symptoms. I have a bad stomach ache gets worse when I eat. And my lower back hurts. They put me on Prilosec. And so far no results I have been up all night with stomach pains. I have seen several doctors and none of witch have ran any test let alone figured out what is causing mine. I go in next Monday to a new doctor am hoping she will run test and finally be able to put my mind at ease. The not knowing if it could be something major is the hardest. Good luck and Hope you find out soon. I have been going through this for almost three years and still no answers. So I fell for you. And you have good luck.