you know why my john limps, and has a reflexive cough, and his hand shakes? because he nearly fucking died. he got shot through the lung, smashed his leg up, he’s got nerve damage from where his shoulderblade fragmented. there’s no magic cure, no matter how much he worships sherlock, or how thrilling things get. he’ll carry that limp, and that cough, and that shake in his fingers, for the rest of his long, full, happy life.