I just found out I have huntington's disease. How can I know when I need help and where do I turn?

Huntington's Disease. There are several excellent web sites that deal with huntington's disease along with support groups - would suggest you search the web for these and they should be very helpful.
Huntiington's Chorea. This is a very serious condition. You should immediately consult with your doctor or specialist in this condition to determine a course of action appropriate for your situation.