I have to wonder if boys get PMS. My son has the worst case of PMS right now. No one warned me about this, they all told me about the girls, and seeing that I am a female, I know all about PMS. However not one person told me that boys get it to.
Right now I have no idea what to say to him. If he were to ask me if the sky was blue, and I said yes, he would tell me how wrong I am, and how I do not listen to him ever. Even after I had answered his question, and was right, for a fact. He also will argue about everything. Even when he knows he is wrong.
So if you have a boy, be careful apparently they get PMS as well.