My son had a training today, after it he disappeared. I called his fri…

My son had a training today, after it he disappeared. I called his friend, it turned out that my son drove him home and they parted ways. After the training, usually I pick him up, but this time he didn't even write that they finished. I drove around almost the whole city, couldn't find him. I wrote in local chats, nobody saw him. I wanted to file a statement, in the end they didn't accept, said to come tomorrow morning. What should I do next? Also, a question like this, my pressure went up during all of this, can I take something?