Over the past month I have been losing weight and noticeably by my parents. I have a decreased appetite, tingling in my hands and foot, fatigue, gas, burping, and sometimes abdominal pain, occasional bitterness in my mouth and sometimes feeling like my food won't digest. I eat what I can. I went to the Emergency Room and I was treated for GERD. I was prescribed Famotidine and Zofran A week later I do not feel much better. All of my urine tests, and blood work came back normal. I was given an ultrasound to check for pancreatitis and gallstones...all were negative. I did take a stool test and I waiting for the result. Im not sure what's going on. Please help