Thank you for your request for guidance concerning your father, Lexilove. If your family has not already done so, please seek out a Movement Disorders Neurologist to add to your Parkinson's team of experts. Other team members such as a physical, occupational, speech therapist, psychologist, dietician as well as other medical practitioners should be added as well. Feeling of sadness and being overwhelmed are very commonplace when first diagnosed with PD. Caregiver support is very important as well to reduce burnout. Please let me know how your family is doing. I care! All the best, Marc M., Moderator, ParkinsonsDisease.Net