Buspirone
"I started taking buspar about 2 months ago. I started having "brain zaps" and I thought it was temporary. It was not. I started getting water retention and I wanted to eat more than usual. I also was extremely irritable constantly. 

I was told to take 5mg twice daily. I started with half a pill then after a week the whole pill 2x daily. 

I since then I decreased my dose to half. Now I'm off completely.  All of the side effects have stopped almost immediately.  No brain zaps, irritability decreased slowly, and water retention stopped. 

This pill didn't do anything except all of the bad. On the positive side - getting off of it does not give you severe withdrawal."