I’ve suffered with trich for 4 years now and have been pulling the hair on my head to the point of haveing bald patches. I’m now very worried about the chance of getting a hair ball in my stomach. Does anyone know what the symptoms of a hair ball is? How commen are hair balls in people who have trich? When you eat your hair how does it exit your body? Can you live with a hair ball and never know it? Will it go away in this own? Please anyone who can help I would appreciate it.