My son is 22 and has been having seizers (grand mall) since age 10, he is under doctors care and on Keppra. However, in the last year after a night of seizers he will through up for days, dark and thick. He has what the doctor calls nauturanl seizers because they would only happen right before he work up in the morning and was still asleep. However, over the last few years he could have them while taking a nap even.