Did I have a panic attack?

Got in bed last night. Lay down, turned to the side and covered my face with the quilt which I always do. Iclosed my eyes, then suddenly, I sort of felt dizzy and like I was going to be sick. I also felt that if I did not open my eyes, that I was about to die. Not sure why I thought I was going to die. And, of course, I have never died before so could not possibly know what it feels like when you are about to die. However, I really felt like if I kept my eyes shut I was not going to wake up in the morning. It was quite a scary experience to be honest. It happened a few times. Every time I closed my eyes and tried to go to sleep. I have had that feeling of going to die a few times before but not experienced it like I did last night. I have had/have an anxiety disorder/s.