I can relate, and it's really horrible, I'm sorry you're having to deal with this.
Has your doctor offered you any help or suggested anything that might help?
I can understand that it's difficult and actually really scary when it seems random and nothing seems to trigger them. I think it's probably worth continuing to try to work out if anything could be causing them; like, if you have any stress in your life at the moment, what kind of thoughts were you having at the time, etc. For myself, I've found that it can take quite a while to identify the problem, if there is one.
If you can identify any signs that you're starting to panic, that can be useful in catching it before it becomes a full blown panic attack. There are lots of things that can help as well; what you'll find helpful might be different to what I find helpful, but I can tell you some of the things I'm using at the moment that help a bit. Grounding techniques can be really useful, I find it helps a lot; there's some information about them here [
http://www.recoveryourlife.com/index...75_articleid=2 ] - the article is about helping with flashbacks but they can be really helpful for anxiety / panic attacks also. It seems silly, but I find that anything that takes my focus outside of myself and how I'm feeling helps; something like counting things (e.g. all the red things in the room, all the round things, whatever) can do that, and is pretty subtle so no-one will really notice you're doing it. I also find that it helps to have a generally healthy lifestyle; I know when I'm functioning as much as possible, getting exercise and also making time to relax, my anxiety is much less problematic. Oh, lots of people find breathing techniques useful but I generally find focusing on breathing makes me feel worse, so I'm sure someone else will have better advice about that!
I know it's easier said than done, but try not to worry too much about it. Worrying about it will only make it more likely that you do have another one. Remind yourself that although it is horrible, scary and uncomfortable, it is a panic attack, you've had them before and got through them, it isn't going to harm you.
Sorry for rambling! I can relate a lot, and it is awful so I really hope that you find a way to deal with them, or better still, that they go away! I'm around if you need to talk or anything. Take care.
