Thanks very much for the reply. You guys are great. Having someone who understands my experience is very comforting.
My dr gave me two weeks of diazepam, but I don't like it. One, it makes me feel dizzy the next day, not like other short-span sleeping pills; but the most frightening thing is that it does not seem to stop panic attacks. One day, I had a dream in which my heart squeezed to death and I woke up, half sedated, experiencing panic attack while couldn't get up and take a walk...
I mentioned this to mum yesterday, and she told me she had it since long before I was born and still has them occasionally. She's always blaming minor heart problem... My father never had it, so I'm just being unlucky...
Will see doctor again soon and definitely ask for a therapist.