[@WritingWolf]Oh yeah, it definitely would have injured him.  His power doesn't make in invulnerable, he can still get seriously injured, he just can't feel the pain.  So he could stick his hand in fire and not feel it, but his flesh will still get burned and damaged.  He could break his leg and still try to walk on it without feeling a thing, but his leg would still be broken and it would still be bad.