I've been trying to speak to my brother for the last 3 days unsuccessfully, he's ignored both my phone calls and my texts. I spoke to my sister the other night who'd also tried to phone him but she hadn't spoke to him either. So today I went round to his flat but there was no-one, I saw his neighbour and she said she hadn't seen him either although she said she'd been away and only got back last night. He's a student so there's no work for me to check with.
Would I be overreacting to report him missing to the police