Realism Sells

Prompt: imagine Tony stressed out from work, both as Iron Man and head of Stark Industries R&D. he's been in six meetings in a week, flown to Honk Kong, Japan and Berlin for another three meetings all in two weeks and then some idiot down in R&D messed something up that was due the next day. he's stressed, hasn't slept in four days, is slightly ill and he ends up collapsing from it all. Bucky finds him on the kitchen floor, a wound on his head from hitting it on the edge of the counter.
“I call bullshit!”

“Tony, you can’t…”

“Too late, already did. Bull. Shit.” He whirled around, pointing down at himself. “Who gave me gray hairs?”