Releasing my Inner LAG

[goofball]

Party 5/10 6max, 4 handed.

I'm in the SB with A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img]. The UTG player who has played pretty tight so far raises. the CO who was busy being a LAG 3bet, I called (ugh?) and the UTG player called.

flop was 5[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/heart.gif[/img]

I checked, planning to see the action and decide. The UTG player bet the CO just called. I felt inspired and checkraised.

yes or no?