You may be right. Given your father s symptoms and age, he may have Parkinson s disease. If so, he may also have tremors (as if he is rolling pills in fingers). Sleep disturbance and depression may also occur in Parkinson s. There are several causes for Parkinson s symptoms: medications (such as antipsychotics), repeated head injury, metabolic, toxins, nervous system disorders (such as multiple system atrophy, Lewy Body Dementia). You should take him to a doctor for proper treatment. The doctor will try to find any cause that can be removed. He/she will then educate your father about his condition and institute a treatment plan. I hope this answer is helpful.