A bang to the head can leave behind a scar that misfires electricity weeks, months, or even years later. Knowing the faces of post-traumatic epilepsy helps you spot trouble early. The classic event is a grand-mal seizure: the body stiffens, then jerks in rhythm for a minute or two. Tongue or cheek may be bitten, and the person wakes up groggy with no memory of what happened. Before that big moment, many feel an aura—a short, strange warning. Vision may blur, smells may turn metallic, or the stomach drops like on a roller-coaster. Some seizures stay small. A vacant stare,... Learn more