...but misery is optional.
This has always sort of been my motto (that and "Often wrong but never in doubt").
Let's face it, at some point we'll hit a bump, we'll be derailed, we'll hit a pothole. Life Will Be Tough. I'm not saying that we need to laugh at our ills, but I try to take it in stride. None of us are getting out of here alive so we should try to enjoy every minute we're here as far as we can.
And yeah, I wake up some days and lay in bed and think "okay, this isn't good, my back hurts so much I don't know if I can move." And then I move, and I moan, and I groan, and I move some more and pretty soon the OTC painkiller kicks in and before I know it I'm at the gym working on that Underarm FlipFlop machine and I guess I'll live another day.
Misery is optional. Unless you're outside in mosquito weather and you forgot your bug spray.
Then Misery really is Us.
