"i started zoloft after being on citalopram. citalopram worked the best for me but due to my age, my gp wouldn&#039;t raise the dose after 25mg stopped helping. i&#039;ve been on zoloft since around february or so and it&#039;s increased my anxiety dramatically. to the point that i can&#039;t sleep and i&#039;m writing this at 4:49am. i also noticed i started to struggle with death anxiety a lot which i hadn&#039;t had problems with in the past. i am still taking zoloft but will hopefully be changing medication in the next few weeks."