Is it normal to get off on not telling anyone about how i feel?

I have been going through what I can only describe as pure emotional torment for a while now, not sure exactly how long it's been going for.
I won't be getting into any details as to why as that's besides the point but for a bit less than a year I decided not to tell a single soul I personally know about any of my problems or my feelings. And for some odd reason, it makes me feel very great. It makes me feel like I'm strong and powerful and resilient to any pain. Like I'm on top of the world, the strongest man alive. And no matter how horrible I feel I must keep going just so I can feel better about myself.

Is this normal?