I’d been using the internet a lot. I wondered, was I addicted? Behavioural scientists have linked internet addiction with social isolation. The three subtypes of addiction are: online gaming, sexual preoccupations, and excessive emailing or texting involving a constant compulsion to message or check messages. Did I have any of these? I did check my messages a lot. They were always disappointing. There was no message, ever, that could be big enough to stop up the gap inside me.