What are the different behavior problems that can accompany hd and how can the person with hd and family members cope?

It's difficult. Huntington's disease is a very horrible condition of the brain caused by an excess of the neurotransmitter dopamine. Someone with hd can become psychotic and lose touch with reality. Here is a website which may help: www. Hdsa. Org. You should also consider maybe seeking some counseling and therapy for the entire family.
Situations differ. Affective (mood), anxiety, retardation, autism, learning, tic, ocd, oppositional and disruptive disorders are examples of the common comorbidities of hd (hyperactive disorder). Each can be a huge problem by itself. When it is causing enough interference with normal activities, behavioral/medical intervention should be done. Behavioral therapies and medications are helpful, but depend on situation.