The worst bit for me was trying to keep food out of the holes that are left and feeling the stitches in my mouth

There will be some swelling but so long as they sort you out good pain killers you should be OK. You might feel abit groggy for a day or two after the GA but it affects different people in different ways.

I had 2 out in the chair under local and the other 2 by GA in hospital, give me the GA every time...