I think you have the best hand here because AK or big pairs would probably have raised PF. I would led on the flop with TPTK and charge the possible flush or straight draws. Your opponents' response would give you a better gauge where you stand for your next action. By checking, you really put yourself in a tough situation where I would not know how to respond because i would not have put myself in that position in the first place. Hopefully it worked out for you.