How old are you? Why watch and wait? I had symptoms of GERD and rheumatoid arthritis for over a year before they found NETS in my liver, SI and Stomach. They kept miss diagnosing until I had an ultrasound of the abdomen thinking I had gallstones Once the primary SINET was removed these symptoms disappeared. I've learned that over 58% of NET patients are diagnosed after the cancer has spread. And ... ultimately it metastasizes in over 75% of patients.!? Why not MRI and or PETscan? My MD/PhD oncologist NET specialist studied at Vanderbilt(cited above) as well.