Im Looking For Healthy Foods For Someone With A Stomach Ulcer Why Is My Stomach Like This !?

Why is my stomach like this !? - im looking for healthy foods for someone with a stomach ulcer

ok I'm very healthy, and I am very thin. 5'2 "and 100 pounds. I usually eat healthy foods, and instant messaging into shape. Exersize me a lot. But when I wake up is, my stomach flat completelyy. And after lunch at school or something as a growing belly? ill see:) and my lower region of the stomach is bigger? taste grows every time I'll eat something, then avoided again in the morning than normal. all i can like this? to avoid foods? in mean weight gain? someone please helpp. noo and rude comments. thank you:)