Do you ever feel like you are dying?

Yes I have anxiety and panic disorder but like…. Okay a friend of mine told her child “go get daddy I don’t feel well.” The husband came in and she said “I feel like I’m dying.” Then she just died right there. I also remember an episode of unsolved mysteries when they talked about a lady who said those words and also just died. I haven’t heard the term “I feel like I’m dying” anywhere else except these two examples.
I swear I feel that way often. Tonight at a restaurant I was staring at four chairs with a blue light coming from behind them. Im just staring thinking woah I feel like I’m looking at something otherworldly and then I get a weird feeling. It’s prickly but soft, tingly but weak, panic but more imaginary, a heart attack with no symptoms, literally just head stuff, no body stuff. Then I think THERE IS NO WAY that other people feel this way. No way at all. Everyone cannot be walking around just feeling like this! And as far as “impending doom” I don’t think “oh something bad is going to happen” I just think “am I dying? I feel like I’m dying.”
Am I the only one? Struggling to find the words to further explain. So hoping I’m not the only although I wouldn’t wish it on anyone.