Used to have these when I was younger. I think I lost most of them, but once in a while, I'll have one. Having them made me feel so awkward and uncomfortable. In any case, I wish people understood them more. That was about close to 25 years ago but then I developed a few in college. I looked odd for sure. Facial ticks, at one point, and I had a thing where I was so self conscious that when I walked, I would be be very careful where I would step. And today, I still bite my nails. Yes, it's a bad and unattractive habit but whatever. The hurtful thing about them is that people blame you the person for them, as if it's something you can control. And it made life difficult for a while. People were so usually uncomfortable with i had them, and kinda felt isolating. One of those things I forgot about which contributes to my sensitivity. But I'm glad there's more awareness of them.