It's normal for me at least. I'm not sure what the underlying reason is for hiding so tenaciously. I have an online friend I sometimes talk to about it, and they helped me to start seeing a therapist, but other than that I haven't said a word to anyone. I've sorta fantasized about opening up to my sister or parents about it, but haven't managed yet, and just keep covering it up. At least part of it is like Wild Coyote said, it makes me feel like a burden, like I should be able to fix it myself since it's not physical, just get a proper mindset and everything will be fine. I think talking about it some has been helpful, but it's still a struggle not wanting to burden the friend I already talk to about it. You've made a good step in coming here, I wish I'd been more persistent and open on the forum myself, the people here are very supportive. Maybe it can help you find some light.