Ok so two weeks ago, I began having these stomach symptoms. They are located in the center of my stomach and upper abdomen. These symptoms are sharp pain, ache, gassy, back ache, radiates, and it sometimes feels like my abs are sore. It feels very acidic and gassy, and I am very nauceous from this as well. Two weeks ago I did vomit 3 times. Today I have the same symptoms, but have not vomitted yet thankfully. Help!!!