I fell asleep on the couch tonight, and 30 mins ago I suddenly jolted awake, I automatically leapt to my feet so fast I hardly knew it was happening and didn't feel awake for a minute, my heart was slamming rapidly and it was extremely loud pounding in my ears. I felt like my sense of hearing was muffled for a minute, my body started trembling as I tried to wake up my boyfriend, and I felt like I was going to die or had just narrowly escaped dying in my sleep or something--I still feel like that:( 

I have had anxiety since I was a kid and it's gotten worse in the last two years, but even though my anxiety is quite high all the time, I've never had an acute panic attack before. Does that sound like a nocturnal panic attack or might there be something actually wrong? I'll talk to my doctor of course but just wondering right now.