I have a terrible habit of chewing on my tounge. I chew it so bad that it bleeds sometimes and I end up getting super painful ulcers on my tounge.

Its like i cant stand the feeling of the little bumpies that are on your tounge, and I think its self injury because i do sort of enjoy the slightly painful feeling of one being chewed off.

Sometimes its just a little, sometimes i do it alot and end up with the whole side of my tounge ripped to shreds.

Dentist was gonna fit me with a night retainer cause im a grinder too but I cant afford it.

any other ideas?

anyone know if this is a known form of SI?