Obsessive Passion
You get so obsessed with something it feels like it's your new best friend. You can't stop even if it makes you feel like a total disaster.
I played guitar for 12 hours straight. My fingers are now made of noodles.
I binge-watched a show for 7 days. I now live in the world of that show.
I ate 20 cupcakes. My face is now a cupcake explosion.