A lot of people say they're sick and tired, when really theyre irritated and frustrated. If you're not terminally ill, you're not sick in the way that you mean when you say sick and tired. If you haven't been awake for days on end working around the clock, you're not really tired. You're just irritated and frustrated with something.
People are not really sick and tired, they're irritated and frustrated, and they've been irritated and frustrated for a long time now.
Where you feel shit the next day as a result of tiring yourself out the previous day. The equivalent of a normal hangover but without the alcohol.
Kevin had one bitch of a tiredness hangover today after fucking that new girl of his for 10 hours straight yesterday. He's gonna need a lot of caffeine and sugar to pick him up.
You googled this because you're tired. I googled this because I'm tired. We're both tired. Go catch a nap and then do your homework. IF YOU CAN'T, just stop procrastinating and get whatever you have to get done, done. You'll be able to sleepsoon enough.
"Bro, I have to study for history, but I'm tired"
"Lol me too. You ain't special."