And I Will Sing a Lullaby (http://archiveofourown.org/works/324633) by ratherastory
Future!fic. Sam's had a migraine for days, along with insomnia because it just.won't.rain. Dean finally manages to make him calm down. Established relationship; no actual wincest other than kissing.

Unbroken, Part One (http://www.example.com/http://sodakey.livejournal.com/949.html) and Part Two (http://sodakey.livejournal.com/1157.htmlhttp://sodakey.livejournal.com/1157.html) by sodakey
Set during the year before Dean went to Hell. As Sam is trying to find an answer to the Crossroads Deal he's working himself into debilitating migraines. Dean takes care of him. (gen)