I'm assuming the answer is going to be "yes", but has anyone else experienced *severe* fever induced anxiety before?

It happened more-so when I was *much* younger, and has happened... Maybe once in my 20's, so it's been a few years.

Basically typically when I'm sick and would have a fever, I'd wake up and just... Be freaking the fuck out. I mean full blown panicking. I'd have to get up and pace, If I tried laying back down I'd constantly jump up and just start *kinda* hyperventilating. 

But the weirdest part? I'd have the ***strangest*** thoughts. My mind would be racing over numbers. How BIG some numbers were, and if I had to reach those numbers it would take forever, or how long years were, and... Ugh it's so hard to explain, and I know how confusing it sounds because trust me, It's confusing to me too. Another time, maybe when I was 10-ish I remember waking up thinking tidal waves were coming to get me. I kept leaping out of bed, and drinking water, scared shitless and just freaking out.

I would get this weird feeling in my chest, like existential doom and it won't go away. Like *literal physical feelings of anxiety*.

Has anyone else experienced this? NONE of my doctors (None of them psychologists/psychiatrists) ever gave me an answer I felt meant anything. I don't think I have a problem or anything, it'd just be nice to hear if anyone else experienced this before as well.

This is going to sound so weird, but even nowadays I get very, very, very faint similar feelings of anxiety when drinking water when I'm in bed. I don't know why.