For long time, I didn't have a panic attack. Yesterday, I had a panic attack, I worked too much and at same time, I was too stressed emotionally. In the evening, I had a panic attack that lasts for 5-10 minutes, I felt dizzy, couldn't breathe, I felt I'd faint... and I was crying. Once I went back home, I rested and fell asleep. I woke up after about 9 hours of sleep, I had a headache and I felt at same time I wanted to sleep more but I didn't want to oversleep. The headache lasted for like 4-5 hours straight, is it because of panic attack or just needed to sleep more?