Feeling Anxious About the Hereafter

Assalamu alaikum, I just need to get this off my chest. Last night I was lying in bed and suddenly I started thinking about the pain when the angel of death comes for us. My mind wandered to being all alone in the grave, waiting until we’re raised before Allah. I got so scared-my body went cold and I couldn’t stop crying. Is this normal? If it’s not, how can I stop these thoughts? I think I had a panic attack, and I ended up playing that long istighfar video on YouTube to calm myself. Since then, I keep thinking about death even when I’m just sitting around. I’m worried-should I talk to my psychiatrist about this? Jazakallahu khair for listening.