A panic attack is an exaggerated stress response to a real or imagined aversive stimulus. Given what you say about the attacks coming when you sit down to do some work, the work appears to be that stimulus. Unfortunately, taking the night off is unlikely to stop the work (or something about it) being aversive. Seeing the GP is the best advice anyone has offered so far, but internet fora are not great places to seek medical advice, and music fora are particularly inappropriate. Would you go to a therapy forum and ask how to tune a violin?
Nothing anyone has said here, with the best of intentions, should be taken as a substitute for getting proper, professional help as soon as you can. Panic attacks can be cured so that they go away and never come back, and you can stop having them too, but for that you need skilled help. Start by seeing your GP. In the meantime, stay away from caffeine (coffee, coke etc) and other stimulants.
QUOTE(purple dolphin @ Nov 12 2006, 05:35 PM)
I really need to get some work done tonight cos I'm now behind after being ill this week, but whenever I sit down to do I some I keep getting panic attacks. My heart just races and I feel really giddy. Neither of my parents are here atm cos they're seeing my bro, and I don't know how i can control them. And when I say I need to get some work done, I really do, I've got mocks in two weeks that I'm got to learn all my french and german for and I've got to do a stack of coursework. But my mind just can't cope with doing it! How can I stop them?