I would say that it is probably likely that you do have H Pylori but the biopsy didn't show it. Ulcers are caused by H Pylori, NSAID's, or gastric cancer, and I believe that there aren't really any other causes. I also think that the biopsy isn't 100% accurate.
i dont take those i use to eat alot of spicy foods pasta with sauce
Welcome to the gastroenterology community! Do you take NSAID's (advil)?