Hi, I was having black stools for two weeks, I went to a doctor, he gave me antacids and i was fine within 2 days, just after the medication for two weeks I started having bloating, stomach cramps, nausea, burping and diarrhoea, I went to another doctor he did a upper GI endoscopy, it was normal but he didn't do any biopsy, he again prescribed me for antacids for one month. After I stopped the medicine I started having same pain, bloating, gas and diarrhoea, I went to doctor again he did usg and blood tests which came normal then he gave me rifagut 400 and a providac twice a day, I am currently on medication for 7 days, I have seen improvement but gas and bloating is still there. Is it h.pylori or ibs?