seizures
"I think the definition of hell was the 4 weeks I was on this medication. Every single day I was constantly in a state of panic. If you've had temporal lobe seizures you may know what I'm referring to; the brief state of panic that occurs when a seizure is coming about. I was in that state of panic ALL day. I was in high school at the time and had to stay home nearly every single day. The neurologist tried adding an antidepressant, a xanax, and nothing would calm it down. When my hair began falling out at an alarming rate that was the final straw for me. I had to DEMAND to be switched to something else. I take lamotrigine now and it has completely turned around. My hair finally stopped falling out about 2 months after I quit the keppra."