If you shot yourself in the head gun mouth would actually feel anything?

Shooting yourself in the head with a gun would result in immediate and devastating consequences, including severe tissue damage, loss of consciousness, and, most likely, death. The impact and subsequent pressure generated by the bullet as it enters the skull would cause extensive trauma to the brain and surrounding structures, leading to instant neurological impairment. The intense force and shockwave created by the bullet would result in significant damage to the skull, brain matter, and underlying structures, leading to immediate and irreversible consequences.