Is he or she grieving? Has someone left his or her life? Is there a divorce? Has someone moved away or even died?
Is he or she being hurt in some way or dealing with unresolved hurts from the past? Has he or she been abused, raped, molested? Is your child angry? Is your child dealing with emotional abuse? Has there been a major change in his or her life? Is your child lonely? Is he or she missing you?
If you discover their eating has to do with you, remember guilt does not serve you or your child.