Hi, my friend has very violent convulsions in which his head shakes back and forth violently and his saliva comes out of his mouth. He was just tested for epilepsy, and they found no brain activity to support this diagnosis in the E.E.G. What else could it possibly be? Thanks.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.