I have a six year old son who has been diagnosed with Selective Mutism. He has a rather severe case. He hasn't said a word in his year and a half of school. He does talk at home and at families house, though. In the past few years, he has really started throwing fits when he doesn't get his way. I am at my wits end. I don't know what we should do anymore. We have been told to put him in his room and tell him he can come out when he is done throwing his fit but it doesn't work. When we put him in there, he won't stay. I have tried staying at the door holding it closed until he calms down but then he starts throwing himself down and hitting his head on the floor. I am so afraid he is going to hurt himself. When he doesn't get his way he follows me around screaming and crying and I can't take it anymore. We need help. I have tried taking things away, grounding him, and even spanking him. None has worked, he just starts to throw a bigger fit. I am really concerned because this is happening more and more frequently and he has a four year old brother who is starting to act this way too. Please help. I don't know what I should do. Most of the time he will throw a fit for hours and then all of the sudden it is like a switch is thrown and nothing is wrong with him anymore. I swear sometimes, I don't think he even remembers any of it. I try to talk to him about all of this and he closes up and won't acknowledge me. I don't know if this has something to do with his selective mutism or if there is something else wrong. There is a lot of mental health issues in the family, such as: bipolar disorder, paraniod schizophrenia, hollucinations.