Star Trek AU prompt

I'm probably never going to finish this AU, so feel free to take whatever you want.

        “Jim—thank goodness; I woke up and I’m not sure…”  He trails off.  He knows that small frown of confusion; doesn’t see it much, sure, but.
        “Uhm, hi.  You okay?”
        His world tilts under him again.  “No—no, Jim, please, you know me, it’s Bones—”  Only desperation has him saying that stupid nickname, but he needs this.
        “Trust me, I’d remember a good looking guy like you.”
        The world moves, again, an earthquake in miniature, and he watches the panic filter into those blue eyes and registers that, suddenly, he’s being held carefully in familiar arms.  “Now, I’d like to say it’s every day that handsome fellows like you fall for me, but it really isn’t,” Jim jokes, but there’s a strain in his voice and concern in his eyes that’s pretty rare.  “What happened?  Are you okay?  Do I need to call someone?”