DS is 17 and in the middle of his AS levels. He is a shy kind gentle and sensitive kid. His gf of 18 months has just broken up with him and he is distraught beyond belief. He refuses to talk to us about it. He has effectively stopped functioning. He is not revising, not sleeping, not eating, doesnt want to see his friends, not leaving his room. Stays in bed all day, under the duvet sobbing. Everytime we try and go in to talk to him he shouts at us to leave him alone and go away. I asked him about trying to do some revision (to distract him if nothing else) and he said he "didnt care" about his exams (this is not like him....he is very academic and was planning to apply to cambridge). I am at a complete loss as to how to help him. He has shut down. Please please can someone advise me? I have this horrible fear he may do something stupid