Great that you received help, I have never taken this medication, Currently I take Trazodone which eliminates the depression so PTSD does not kick in and
Seroquel for Bi Polar, many of the SSRI's have unpleasant side effects at first but I know from reading and my own experience, give your body 7 to 14 days to adjust even if it's really hard to do.
Wishing you the best
Andrew