I keep things in my mouth
If I'm eating meat and I come across a piece of hard fat, I chew it like gum for like 5 hours. Also, if a fruit has seeds, I keep the seeds in my mouth for just as long.
I do it with non-food items sometimes too such as fingernail clippings, plastic, staples, etc. I've kept things like this in my mouth for days.
Is it normal that I do this?