Supernatural Story Finders

Hi everyone, I'm looking for a fic whose title I cannot remember that, if I recall correctly, took place some time after the events of S05E03 "Free to Be You and Me," when Dean told Sam to "pick a hemisphere" after they had learned they were Michael and Lucifer's vessels. I guess it would be considered canon-divergent since Sam and Dean end up not reconciling or getting back together for a year or two, when they accidentally end up on the same hunt-- I think they might have been hunting a vengeful spirit in a barn or something? But the hunt was only a brief part of the story.

Anyway, during the hunt, Sam saves Dean from getting killed, I think, but Dean is still badly hurt, so Sam drives him back to the motel where they both happened to be staying and patches him up. On the way, Dean starts getting curious when he notices Sam's limp, which only becomes stronger when Sam goes out of his way to avoid talking about it, so Dean ended up sneaking into Sam's motel room the next day and saw Sam's prosthetic leg laying on the bed right before Sam came out of the shower. Dean was so shocked he threw up, and Sam ended up explaining that he had been hurt on a hunt (I think?) and had to have his right leg amputated, but didn't call Dean because he didn't think Dean wanted anything to do with him. Dean suggests that they start hunting together as brothers again, but Sam is conflicted because Lucifer has been making his phantom pains worse or something in an effort to force Sam to say "yes" to him, and he's afraid he'll eventually give in to relief the agony, I think?

I'm pretty sure that was more or less it as far as the story goes-- I am almost positive it was a one-shot, and that it was written in third person but in Dean's point of view. If I recall correctly, I read it in a Supernatural community here on LJ, but I'm having no luck whatsoever in tracking it down in any of the comms I belong to, and I didn't see it in the relevant tags here, either, so I don't know if its just been deleted or moved to a different site or what. If anyone can help me out in finding it, I would be so grateful! This is my first post here, so I'm hoping I did everything correctly.

ETA: thanks to the lovely lennelle the fic has been found! it is "Sufferance" by utsusemia