MY four year old son who has never been afraid of anything, suddenly hasall these fears. He will not go into another room without someone accompanying him for any reason. We've tried reasoning with him and any thing else we can do. He get so annxious that he will throw up, he screams with his stomach and his throat starts to tighten up. I am at a lose as what to do. He recently broke his leg and when they removed the cast it had healed nicely. He had such hysterics though and wouldn't put any weight on it that they decided to put the cast back on it. Surly they can't keep the cast on indefinetly.