When I first started coming down with Covid, it was evening time and I wasn't really sick yet but I could feel that I was coming down with something, just like how you normally feel when you're about to get sick (bad taste in your mouth, slight feeling of discomfort). But itt wasn't until early the following morning when it got real bad and I actually felt sick. But something you said reminded me of how I felt, the "couldn't move my right arm" part.
I kept waking up that morning and stretching my back and arms as much as I could, but no matter how much I did, it felt like it wasn't enough, like I couldn't get a satisfying stretch in. Did you (or anyone else reading) get that feeling too, and is that a known issue related to getting sick with Covid?
You know how normally, you might wake up in the middle of the night and stretch, and then you can settle back in and fall asleep again, satisfied? I kept doing that but I could never get comfortable after the stretch, and I'd fell like I needed to stretch again a couple minutes later. It might not sound that bad, but it was really annoying.