Thanks for the replies, I tried to do what he said but was feeling worse and got nervy and panicky so when i returned to my gp on Monday he asked how things were going and i told him i felt worse so he said to go back to taking sertraline 100mg daily as i did before. I am so afraid that if I leave it alone then i will get the panic attacks again, as i am sure you all know they are the most awful things to experience. He has also given me some tablets to take at night as i have been finding it hard to sleep. Heres hoping the next two weeks (til my appointment with him again) is ok.