I switched from Prozac, Luvox to Lexapro. I didn't really get brain zaps, but more towards the common side effects. SSRIs didn't work for me. (come to think of it, my current med is not working as well)
Maybe prozac might be it for you?

I'm not too sure about psych meds... hang in there!
__________________
"The is no better exercise for the human heart than reaching and lifting others up." - John Holmes
herethennow: This ward is a prison!
Wardmate: No.. here's not a prison. *points to brain* Here is.
dx: recurrent MDD.