Terrible Two's!!!

Ok so I thought it was a myth! Like seriously! But here I am, trying not to strangle my 2 year old. He is all of a sudden not the precious, well behaved little boy that I have raised; he is a little tyrant! My older two were not at all like this. I have always gotten compliments on how well behaved my children were. They all have very good manners, even the two year old normally. I mean don't get me wrong, they still act their age, and by no means robots, but they say please and thank you, excuse me and bless you. They are well behaved at other peoples houses, but know they can cut loose at home. My oldest went through a limit pushing stage at three, and my daughter still tries my patients sometimes, but nothing like my youngest! All of a sudden he just seems to have to decided he doesn't have to listen to a word I say!! He pushes and bites his older brother, and when I tell him to quit doing something, he completely ignores me! He destroys everything in sight, and has recently decided to just not eat anything I put in front of him. I even let him choose lunch, but when I give it to him, he screams!!! Oh, people pleeeeeaaase tell me this will pass soon. Lie if you have to!!!! I need a time out!! Thank the Lord for bedtime!!!