All of a sudden my calm and usually quiet child has turned into the devil who constantly screams at…

All of a sudden my calm and usually quiet child has turned into the devil who constantly screams at the top of his voice and seems hyper 24 effin 7. He is SO clingy to Kurt as well and his new phrase is "I want" which is extremely annoying 😭 he's suddenly turned so demanding and naughty. I will pull my hair out by the end of the week I think, FML