Your complaints though may be complete but your history is insufficient in the following aspects :
Age, Gender, food habits, etc.
With the available history the diagnosis may be a Gastritis
or a Gastro-esophageal Reflux disease. But, USG abdomen is a very crude investigation to arrive at a diagnosis. You may either need a CT scan
abdomen or an upper GI endoscopy
or both. The treatment of your problems will be based on the results. Wish u a healthy life...
Dr. Mohammed Ibrahim