It's been a while since I've been on here as I'm trying to get better. But yesterday I experienced something I never have before I was trying to doze off in the car then I sat upright so quick feeling like I lost my breathe and It soon came back the same night I was dozing off then I bolted upright again feeling suffocated and my heart was pounding within 4 mins I was back to sleep. I suffer from bad derealization all day every day. I've had a ecg 2 stethoscope checks. Blood pressure and blood tests and nothing has come back bad. Could it just be anxiety?