Every child is different. My son had 3 sets of tubes put in. The first time younger than your daughter and he came out singing! No real words of course, but using his voice in the recovery room loudly and happily. The doctor said he felt so much relief that he was probably feeling good for the first time in a long time.
Be sure they know she was irritable last time. The anesthesia may have contributed and they may do things a little differently this time. Picture your little girl waking up happy and shrugging it off. You may think I am nuts, but I think if you picture it and actually meditate while she is in surgery seeing it all go well in your mind that it will help it actually happen.
Even if you think I am nuts........ how could it hurt?
:)