For a very long time there has been a suspicion about the mental disorder named “misophonia” , Yup! which means “the hatred of sound”. After all, you might not be that much responsible of annoying one of your family members (this is actually a very common mental condition). You should give them some slacks, they don’t have any control on it. It is literally like a xenophobia.
The following video shows a guy just going into public places and start eating stuff very loudly. Enjoy!
(Courtesy of JStuStudios)