I'm feeling much better today. Though a panic attack may last for a little while, the after effects tend to linger. In my case that includes tenseness, and tiredness since I don't sleep so well. I've been doing some qi gong especially the deep breathing. It's amazing how much it has helped me to fall asleep. I'm still trying to get the hang of meditation, but it's not easy. When you're stressed it's just so much harder to calm your mind. Well, as they say, practice makes perfect.