I agree with Turbulence.  If your plan for the hand is to get it all in on the flop and you get called, you have to know you're behind and most likely have to hit your flush to win (unless he’s willing to push all his chips in with nothing, but even then we have nothing too).  You're essentially putting your tournament life on a draw.  Perhaps if you were in position and had an overcard, the play wouldn’'t be as bad, but even then the all in shove is unnecessary.  I don’t hate the check-raise on the flop, but you need to form a plan in your head before you do it.  If I check-raise and get 3-bet, will I go all in or fold?  Do I want to risk going all in with a draw when I have 38 BBs as the short stack heads up?  If he'’s significantly better than you, the answer could be yes, but it doesn’t sound like it.  What if he just calls my check-raise and I miss the turn?  Do I continue with the aggressive line?  What if he calls again on the turn and I miss the river?

You can see how quickly this check-raise against an aggressive player out of position can cost you a lot of chips when all you have is Q high.  I’d recommend calling the flop bet and seeing what he does on the turn.  If you hit your flush…great!..most players won’t put you on a flush when playing heads up, and you can use his aggressiveness to your advantage.  If you miss and he fires again, I’'d probably just give it up and look for another spot, content with losing 24k for a good chance to double up.

Overall, if you are playing heads up against an aggressive player, you should try to minimize your loses when out of position and maximize your advantage when in position.