Glucose test reaction?

I’m assuming what just happened to me is not common, so I don’t meant to potentially freak anyone out with this post but I just want to know if anyone else had this reaction.

So I went in and did my one hour glucose test, about 30 minutes in I started to feel slightly lightheaded, at the hour mark I felt a little like I was going to pass out and then at about an hour and 20 minutes I was in the car on the way home and my entire body freaked out. Whole body sweating, hearing was gone, vision going grey, body shaking, honestly felt like I was going to throw up and shit myself at the same time. I started panicking which didn’t help, but once I got my breathing under control it was marginally better. Lasted about 5 minutes or so before it started to go away. Genuinely thought I was dying at the peak of it though.

Is this normal??? What the hell just happened???