He can't have AK or AQ cuz he would have raised so your kicker is not the problem. Now all you have to be worried about is A2 etc... for two pair or a baby pocket. A raise on the turn would definitely tell you because I don't see players 3 bet the turn on flush draws. If you get called then good, you have the best hand, if you get raised, hope for the board to pair and improve your hand. I think you played it fine though....