Good lord. My previously happy, laid back baby has turned into a tantrumming mess. He'll be happy, but the next second will be a screeching banshee. I dont really give much stock to wonder weeks, but I checked it and my son has just entered leap 8. Does anyone else have an 11/12 month old thats suddenly turned into a shrieking monster? Do they go back to their normal selves after this phase/leap has finished? Please save my sanity! At least my cat is nice.