instruction: hi doctor I am an 18 year old male I have been experiencing a wide range of symptoms for nearly a year it all started in the last summer I started to experience constant vomiting after eating bloating and weight loss then I was diagnosed with a dientamoeba fragilis infection and given a course of antibiotics I thought I would get better after this but that was not the case I was treated for the bacteria and I still have symptoms like occasional vomiting a lot of weight loss 15 20 pounds bloating and abdominal swelling the doctor did a bunch of blood tests and said he did not see anything wrong the vomiting stopped but I still experience the symptoms and not gaining any weight so my doctor referred me to a gastroenterologist I told him about my symptoms which are as follows herd weight loss occasional abdominal pain abdominal swelling and bloating malnutrition alternating diarrhea and constipation and heart issues like racing heart and heart palpitations my sister has celiac disease my gastroenterologist has done an endoscopy and said he does not think that I have celiac and he said helicobacter pyloric might be a possibility I am really worried because I have got a lot of blood tests and everything came out fine except vitamin b12 and deficiency so I just want to know if you think that I could have helicobacter pyloric I am really anxious please explain as soon as possible and share any other possible illnesses that I could have based on my symptoms thank you
output: hi for further information consult a general medicine physician online