Does anyone else have the nervous habit of biting the inside of their cheeks?

Please don’t do this. It is a possible problem long term.

My aunt does this. And my dad does something like it, too. They’ve been doing it as long as I can remember, but their cheeks aren’t swollen or anything.
Are your cheeks bleeding?

No, the tissue is just a little torn.

Interestingly enough, they just did a feature on today’s episode of The Doctors.

The woman who had this habit was concerned because it was kind of caving in her cheeks and causing her to look much older than she actually is.

If you go to their website, I think they’ll have a clip of the episode which you can watch online.

EDIT: I found the clip for the cheek biting segment. Hopefully, it will be helpful to you.
.
.
http://www.thedoctorstv.com/videolib/init/10834
.
.

This sounds like it could be Dermatophagia.

I don’t know anyone who doesn’t have some kind of nervous habit or habits. Mine is picking on my nails, which I’ve done since I was a little kid. Yours doesn’t sound serious. There are mouth washes and otc oral meds that can help reduce the swelling and pain and promote faster healing. Don’t over-fret about your “habit.”