Am I having gallstones attack or what?

Hi there

I was diagnosed of having a bunch of calcified Gallstones more than a year ago when I was 5 months pregnant and had a terrible stomach pain after eating chocolate. At that time, I was nausea, having diarrhea plus inflaming stomach which wouldn't go away until I made myself throw up. After that I had several attacks when I ate fatty foods and the only way which could help was throwing up. After having the baby, I was fine for a year, ate any kind of food. Just in last few weeks, I constantly went in pain. This time, I didn't have nausea, diarrhea but horrilbe sharp pain in my stomach. I just wonder if it was the Gallstones attacks or stomach ulcer. Most of people here described the symtoms of Gallstones attack like upper right abdominal pain which I didn't have, always the pain was in my stomach. Any comment is appreciated. Thanks, Julia.