Hi. I'm sorry your going through this to and must be scary to be away. I'm a younger person too well 29 but I know how this can be confusing. Though many here are older the bond is the same and the help I have recieved from these people is amazing. I'm still new to this but I wonder if the back issue is what is contributing to the feet that its coming from your spine. My issue is my legs inner ankle/foot and I know they thought it may be coming from the spine or brain but was not. I hope you can find a doc who will order more tests. Have you had an mri of your spine? What about an emg?As for the stomach issue I have my issues too not in the same as you. Could this doc though order some blood tests to test for celiac or immune issues? I know you said they won't for most but maybe smaller tests they will. Another thought if an option could you have one of your docs from your hometown order the tests where you are? Well hang in there and if you want an email buddy I'm here.