A week of broken sleep is enough to change my whole personality. I end up hopeless, self-destructive, and convinced that I’m going to die imminently for some reason. Just this conviction that my heart is going to wear out any day now. It’s such a bizarre experience, especially to finally get sleep and wake up with such energy and positivity.
Classic symptoms of anxiety from the sleep deprivation, no?
I've also found that there's a lag on recovering from sleep deprivation, where the first night of good sleep often leaves me feeling foggy and lethargic the next day. After 2 or 3, that energy and positivity returns - not sure if that's idiosyncratic or not.
I feel exactly the same way. The first night of real rest feels as if my body “caught up” to how sleep deprived I was and I often don’t accomplish much that day.