Where to start! My 18yo son has been type 1 for 10 years. The last 3 have been sheer hell. His personality change and excess drinking/weeing were the first signals that he might have been diabetic. Prior to that he was so bubbly and daft. Now, he's like Jekyll and Hyde. He's just left home for the 3rd time. Last year he was smoking weed and drinking. He started stealing, lying and a really nasty side appeared. After being spoken to about his behaviour he left. He spent 2 months sleeping on a friends floor, ran a constant hyper and got scabbies. He finally came home. That lasted 3 weeks. He took himself off again when he was asked why he didn't like his new haircut! He got himself a flat through some charity or another and after 2 months there came home again promising to change. He did and it was a pleasure. He started a new college course and cut out all his vices and found a girlfriend. But he's been struggling with his mental health. Sometimes he's lovely and level headed, other times he's a nasty manipulative liar. You don't know where you stand with him. He went on holiday with his two older brothers earlier this month and destroyed the holiday. His self management went to pot and he was that agressive with them that they are giving him a widebearth now. Since he came back he has been on a protein diet and had become obsessed with his diabetes and has decided that he is the only one who knows how to handle diabeted and that everyone else is stupidly ignorant. Now he's gone again because I asked him to hoover the stairs and as a reward me and his dad were told exactly what he thinks of us. Which was the exact opposite of what he said the night before! I know teens flipflop but his behaviour is worrying. He sends lenghty nasty texts and then behaves like it never happened. I am at the end of my tether with him. There's loads of other things he does that make me think he depressed. We've tried to get him to speak to professional but won't. So he's gone again and I'm worried about him. Sorry for rattling on.