There could very well be a non-anxiety effect and I'm not trying to dismiss that.
For me, I've experienced the difficulty sleeping, early morning wakefulness, heart rate, nausea, stomach issues, and sweats as physical symptoms of anxiety. A big/scary event (getting covid, death of family) can make the physical symptoms more apparent.
Not sure about low grade fever, but it wouldn't surprise me.
Again, doesn't mean it's not something else but I think people tend to dismiss anxiety as someone not taking the claims seriously - when to me anxiety symptoms are serious and miserable, they just require different treatment (unfortunately Hypervigilance makes things worse when anxious about symptoms and thinking they're not anxiety related).
I still have a hard time telling the difference between actual infection/physical illness and anxiety personally even knowing all this about myself - it's hard.
For me, I've experienced the difficulty sleeping, early morning wakefulness, heart rate, nausea, stomach issues, and sweats as physical symptoms of anxiety. A big/scary event (getting covid, death of family) can make the physical symptoms more apparent.
Not sure about low grade fever, but it wouldn't surprise me.
Again, doesn't mean it's not something else but I think people tend to dismiss anxiety as someone not taking the claims seriously - when to me anxiety symptoms are serious and miserable, they just require different treatment (unfortunately Hypervigilance makes things worse when anxious about symptoms and thinking they're not anxiety related).
I still have a hard time telling the difference between actual infection/physical illness and anxiety personally even knowing all this about myself - it's hard.