Hey, Neri, Its okay. If you want to tell people, then let them know you have something to say. Something that is very important to you, and very close to your heart.
Personally, I don't think you have to tell anyone anything. No one online really knows you, so they have no right to judge you on anything. That said, you can either 1) just dump it all like a truck, and deny ever hiding it. {Hey guys! Guess what? [insert story here] Deal with it! *puts on aviators and ollies the heck out a there*} 2) Mention it if and only when it comes up in conversation. {Hey dude, don't make comments like that, its offensive to me. Yeah, I'ms troll, didn't i tell you that? Oh well. *ollies the hell out of that convo*} 3) not tell anyone anything, why should they know? {Nope nope nope nopenope! *ollies out*}
But... For people in real life? just tell your closest friends, that's what i'd do. Its like any sensitive secret. It can hurt you if you don't tell it, but it can hurt you if you do. Your true friends won't hurt you, but anyone else might, simply because they do not understand you. You don't have to tell your parents, or your friends, or your teachers, or anyone. Simply tell those closest to your heart. Those are the friends that matter.
Weeeellll, i'm all out of advice here.
Hope it helped!
*sprints away*