Sharp pain on left. Resolved? Was it upper or lower abdomen? Upper could be gas, constipation, costochondritis/pleurisy- inflammation viral/ bacterial of the joint/ covering of the lungs or gastritis( try a tablespoon of maalox) , rarely from a clot in the lung or splenic lesion. Lower may be gas/ constipation or from lumbar spine or kidney stone rarely at your age divereticulitis ( colon inflammation )F/u/ w/ do.