URGENT ADVICE PLEASE!!

Basically I gave birth on Monday at 8.09pm and haven't slept very well since. I had no sleep through out today and hardly slept last night, I thought I could get some good sleep tonight and fell asleep straight after I fed my boy because I was so tired! I have just woken up due to feeling very scared and like I couldn't breathe, it panicked me so much my whole body was shaking. Was I having a night terror or is my body trying to tell me to get more sleep?