I haven't been diagnosed with any form of anxiety yet, but my psych doc definitely knows it's there.

He asked me general questions about what I do in anxious situations. He told me to show him my nails, saw I didn't chew on them, said that was good and asked if I do anything similar.

I bite down on my actual fingers. He said it was the first time he's seen someone who does that. So, I would guess it's weird.. lol