Hi my father has a Parkinson' disease and he is taking Parkinson medicine since 12 years. But he broke his leg tibia fracture by bike accident. He underwent surgery and got a titanium plate in his fracture. But he is having mental disorder since the day he got admitted to hospital after surgery his mental condition became worse.He dont remember people,his home,and also he forgets that he had accident.He see strange things which we cannot see,hear voices which is really wierd. We dont understand what is the problem.maybe because of Parkinson strong medicine or something else.please help