K.P.
Maybe he just isn't ready for preschool. I would look at it from all perspectives. Ask yourself..."am I sending him to preschool to get more time for myself?" "What is he really gaining in preschool?" "Is what he gets out of preschool really worth doing this to him?" If you are just sending him to preschool so that you can get things done without lugging a 4 yr old around with you, it isn't worth it. I never bought into the idea that kids need preschool for social interaction or that they will do better in school if they go to "preschool" first. I have 2 kids, one in 1st grade and a 4 yr old. I never sent them to preschool. I taught them the ABC's, 123's and their colors by the time they were 3. I have always taken them to parks for social interaction. I am very proud to say that I was able to teach them everything they need to know before they hit Kindergarten. My oldest is excelling in his grade. He is in the top reading group, he can spell and read very hard words. He loves to figure out math problems, and is one of the most social kids I have seen. He makes friends with everyone he can. My youngest can write her name, her brother's name, my name and my husband's name. She knows the ABC's, all of her colors and can count to 100. She isn't too shy about meeting new friends either. I wouldn't say I am raising geniuses, I just took the time to teach them, and this is what came of it. They are proud of themselves, and I saved a heck of a lot of money on "preschool." If my child was so upset to the point of vomiting, I'd pick him up and take him home. Then take him out of the preschool. Keep him home with you, and enjoy teaching him. You can decide when he is 5 if he is ready for Kindergarten, if not, then you can wait until he is 6. You are the parent, you don't have to do what doesn't feel right just because all the other moms are doing it.