Ashi,
I read your initial post with quite a bit of interest as we seem to have somewhat similar circumstances.
When my problems with generalized anxiety disorder first appeared, I did not think I had any reason in the world to be suffering from them. In the beginning there was nothing really specific that you could put your finger on. I felt a little light-headed or dizzy from time to time but always found some convenient excuse to blame it on. One day I noticed that I just felt 'out of it' for lack of a better term. I felt somewhat spacy as if I'd taken too much cold medication. This feeling lasted for several weeks and eventually culminated in a very humorous (now, anyway) episode while having lunch with several of my friends. My heart began racing while sitting at the table and I suddenly jumped up. I then became incredibly weak all over and fell back into my chair. My friends rushed me to my doctor (Thank heaven for good friends!) and after a thorough exam he determined that there was nothing wrong with me. He suggested the possibility that I might be suffering from some inner ear ailment and prescribed some meds for that. Unfortunately this only made the situation worse.
Several more trips to the doctor, and a few more panic attacks later and they came to the conclusion that I needed to be taking an anti-anxiety medication called Effexor. I'm not terribly proud to admit that I'm taking something like this, but the difference in the quality of my life now is absolutely amazing. It's not that I don't worry about things anymore, but can put things into much better perspective than I was before the medication. In other words, the little things don't seem to worry me as much as they used to.
I was incredibly reluctant to take medication as I worried that it would somehow alter my personality, but I'm here to say that after three years I'm a much happier, better adjusted person than I was before starting it. Friends have even commented on how I seem much less worried about things than I did before. I haven't had a full-blown attack in three years now, but there are times when I can feel one coming on. As someone said earlier, deep breaths can help immensely as can trying to focus your attention on something else. Not always easy to do, but with practice it becomes almost second nature.
Sorry to ramble on so long...hope I haven't bored everyone.
Brian