Just ate a small salad, now have burning feeling in stomach and pain around right shoulder blade. no fever.

Gallbladder: Abdominal pain that radiates to the right shoulder blade is typical of gallbladder disease. Salad greens should not cause an attack but a salad dressing that is high in fat could. Gastritis can also causes a burning sensation in the abdomen but the location of your pain is consistent with gallbladder. I advise being seen, ASAP if Increased pain, vomiting or fever.