Sure, I can breathe well for days.
Except I'm somewhat constantly dehydrated (quite why the above), diarrhea (and loss of appetite, and seemingly not digesting stuff, and low grade chronic stomachache), a lot of sore joints, headaches and this pain behind my eye along with weird fever that just seem to rob body heat from the rest of my body and concentrated it into my head.
Not any better falling asleep over. Yeah I spent several hours asleep.
But none of it are deep. Just uncomfortable. No different from my "usual".