I'm looking for a fic from a while back. It was wee!Winchesters, and Dean got some sort of cancer/leaukemia that landed him in hospital for chemo. There was also some kind of cowboy hat or something that John thought looked ridiculous but Dean loved.

Help, anyone? And while you're at it, I'd love more sick!Dean gen recs as well.

ETA: Found, thanks to janissa11: Spirit Fall by hionlife.