I'll let you know when I figure it out myself

A one armed, sickly skinny hipster boy, sitting on a mushroom, singing the coda to bittersweet symphony, wearing only y-fronts. For no reason whatsoever.

What has become of me?

Mind you, I saw a sword swallow-er last week, and I spent a large amount of time mulling over how skinny he became when he was relaxing his diaphragm. Maybe I enjoy drawing jutting ribs a bit much.