"Overpushing" in early position

[GoldenHorde]

I found that this situation came up quite often when I was playing 22's.

So lvl 3 hits and you are sitting with 550-650 chips in EP on a nearly full table and you get dealt AK. Raising to 125 or 150 will quite often draw callers and you find yourself playing out of position with an awkward stack.

I found myself just pushing all in here same with AQ and 9's-J's perhaps worse on a shorter table. Is this the standard line here? Or is this just a case of me losing my desire to play anything post-flop?

I've finally moved on from the 22's after maxing my ROI at around 25% but im afraid my game has grown stale and i've stopped thinking so I want to shore up some of these possible leaks as I start the 55's.

/edit I guess the question is really how do you play these hands from EP with a 11-15xBB stack.