Since I've been taking some sick time recently after fighting with my own head about whether I deserve to heal up and rest or whether I'm "really" sick enough to deserve it

Anyone not feeling up to par is sick enough to deserve it. I want to say "You deserve it because we all do, sick or not" but don't want to sound like I'm tsk-tsking. Just stating a fact. Rest should be everyone's everyday activity (when possible) not something we're all doing only upon our deathbeds *curses Protestant work ethics/Calvinism/any other work to death movement or philosophy that's ever pissed me off/destroyed others* (though Japan has something even worse going on with that, come to think of it)

Hope you will feel better.