Well pushing all in after a 3bet and than 2 allins before you, AQ, AK possible, on has a decent pocket pair... Depends on how they play and you know what they would call or all in with, thats based on your skills and tells, me personally I would have folded, Because any A in their hand would have dominated. so do you wanna get beat by an A4 off suit vs QQ, save it for another day let the QQ go