Oh this is an easy one, i have a few bad habits i'm afraid.
- I constantly click my back. I love to turn half way and back again just to click my lower back. Temporarily this feels good (i get lots of aches, would love someone to stand on my back!) afterwards I wonder why i did it...
- I pull my hair or make knots in it when i'm bored or tired, i don't usually realise i'm doing it.
- Often, after i've cleaned my teeth or if i'm just bored I'll use a needle or something similar to clean right between them, not great but hey!
And that's all you're having.