NC for this.
My 9 year old had a sleepover at his grandparents on Saturday evening. As it was a treat, he obviously stayed up late and was over tired when he came home yesterday.
We had a lovely day, a few tantrums but nothing serious but when it came to bedtime he had a huge meltdown over brushing his teeth. He was told to stop messing and do his teeth, he argued that he was and it went back and forth for a few minutes until I told him rather firmly to brush his teeth or he would go straight to bed and miss a TV program that he wanted to watch. I didn’t shout, but it was definitely a firm stop-fucking-about-and-brush-your-teeth voice.
He went to his room in a mood and I heard him sobbing, so I went in and asked if he was ok and tried to hug him, he wanted to be left alone so I said I’d come back and check on him in 15 minutes. I sat on the landing listening to him and I could hear him really crying, and what sounded like him hitting his mattress. I knocked and asked to come in and he said no so I went down to make him a snack, left him another five minutes and knocked and went in. He gave me a massive hug, still sobbing, and said he didn’t know what was wrong with him but he felt like he wanted to hurt himself. He said that he’d got one of his darts and put it against his chest and that he had wanted to go downstairs and get a knife 
. He let me lie with him until he fell asleep.
He has never, ever acted like this before but he was genuinely upset. It was more of a frustrated/angry upset and he said he felt angry at the time. We speak about big feelings and how it’s ok to be angry/sad, we speak about how feelings pass etc and he knows if he doesn’t want to speak to me or his dad he’s allowed to ask for my phone to call his gran or grandad/another family friend and I will never refuse
I’m so turn between putting this down to him being exhausted (he struggles emotionally when he’s tired) and a bit of a strop escalating, or whether I need to be really concerned and go to the GP.
I’m so worried about him and hate the thought of him being so upset. We had a chat and a cuddle this morning and he’s feeling much better, but I don’t want to minimise this either. I don’t know what to do.