1st off I would not have raised this preflop with only 2 limpers ahead. You need at least 3 and preferably 4 to pump it. Your high draw with this hand is tenuous, nut spades and weak top end straight, with a bad kicker to your Ace.
On the flop - I'd muck it. You're only playing for a possible 1/2 the pot and most likely will be 1/4rd. The BB probably had A2 also, and possibly with backup for low. This is a bad flop for your hand, just release it. Everything else after that just gets worse for you.

JMO - Knoll