Had anxiety for as long as I can remember but I was on citalapram and was using cocaine and didn't realise the damage I was doing I had anxiety induced derealisation for about a year then ended up in prison whilst in there the doctor kept changing my tablets ajd for around 3 months my brain was in a chronic anxious thoughts and derealisation state and have not felt righ since I come home off any tablets and felt great but very anxious then went to the doctor and they give me some more anti depressants sertiline and boom straight back into that horrible state derealisation and chronic anxiety because my brain was so anxious and any feeling I panicked and now I'm off then and never taking anti depressants again!! I've been left with a chronic headache and panic, never felt so messed up and litrally not a clue what to do anymore.. anyone help?