Sans: *Whining and carrying on about how much everything hurts, while also being incredibly pissed for no reason at all*

Papyrus: *Whines about it, but not to the extent that Sans does. He's more focused on staying in control.*

Gaster: *Surprised at how much it hurts, the fact that he's got two sets of arms, and that he can't just "take back control if it gets out of hand"*

Cyburrus: *Sips tea calmly while suffering immensely* ...This is fine.