Hi Rowan,
I feel the same. Why haven't I discovered that website before. I don't know how is the situation in your country but you can't find really useful websites in my language trying to help you. What you can find is some medical stuff which doesn't help you to understand what is going on with you and how to cope with panic attacks. The day I found this website (it was mere luck), I found a site giving you some tipps how to cope with them. I have the fear to faint in public. They recommended me to imagine how I could faint, how much fun it could be and it may sound funny but to laugh about it. It really helps me. And, I have the impression, only to register at the paniccenter has reduced some of my fears.
How are you doing with Citalopram?