The organs found in the upper left side abdomen include the spleen, a portion of the bowel or large intestines, part of the pancreas, a portion of the stomach and the left kidney as well as the skin, muscles and left lower ribs that cover these organs. The heart can be found just above this location. The ultrasound has already ruled our any serious reason. So, this might be a simple muscle sprain, or constipation. Tab Librax is effective in stomach ulcers, irritable bowel syndrome, or symptoms related to intestinal infection. Please consult gastroenterologist for further evaluation and treatment. You may get gastroenterologist online free advice on free doctor helpline. You may call doctors on helpline or contact doctor on phone call for further evaluation and treatment.