Have been on sertraline for a good six months months ,before that was on citaloprin ,have been up and down most of the time .Then the last week or so been feeling a bit worse and today is being absolutely awful the whole of last night felt like constant panic which has carried on all day today.In the past when I have had these attacks they have only lasted a few weeks at most has this happened to anyone else and how did you handle thank you for reading .