Type 1 diabetes: Frequent urination, unusual thirst, extreme hunger, unusual weight loss, extreme fatigue, irritability. Type 2 diabetes: Any of the type 1 symptoms frequent infections, blurred vision, cuts or bruises, tingling or numbness in the hands or feet, recurring skin, gum, or bladder infections.
Sociopaths are often unable to control their behavior and their expressions of annoyance, irritability and threats when faced with situations not appealing to them and they often tend to resort to threats, aggression and verbal abuse.
Another source characterizes passive-aggressive behavior as: A personality trait marked by a pervasive pattern of negative attitudes and characterized by passive, sometimes obstructionist resistance to complying with expectations in interpersonal or occupational situations.