YOU'RE HAVING A PANIC ATTACK, BUT IT'S NOT THE END OF THE WORLD

Or is it?

Take a few deep breaths, and try not to think about the impending doom.

Or do something else, like:

Or, you know, just go back to bed. It's not like the world is ending or anything.

But seriously, if you're feeling overwhelmed, talk to someone. Or a therapist. Or a cat. They all listen, right?