Tummy ache, earache, and stomachache are all kinds of aches that can be experienced by people. A TUMMY ache is a pain in the abdomen, usually caused by indigestion or a virus. Earache is a sharp or dull pain in the EAR, which can be caused by an infection or wax buildup. Stomachache is a general term for pain in the abdominal area, which can be caused by a variety of things such as indigestion, food poisoning, or a virus.