I don't tell people either, I'm always OK.
Only one person irl knows that I cut and only a small group of 3 friends know that I've got "issues." Everyone knows about my trauma(s) tho... Sometimes I feel like they know more than me because some alter told them things that I don't know.
But no-one irl knows that I've got DID. I find it difficult to tell online people, I'm not ever going to tell someone irl lol. But I wish I could.
Tom