My phone worked normally yesterday but when I woke up today and opened snapchat I noticed that a vibration would go off every 2 seconds. I tried restarting it but it didn't work. I did however notice that whenever it would vibrate, the symbol of my locations would turn on and then off. I tried turning off the locations but it still vibrates. It's very annoying and I thought it was only on snapchat but then sometimes when I would scroll through my phone it would vibrate. I have a Samsung galaxy s21