<s>[INST] dear sir i am from Pakistan. Sir i am under treatment from last 12 years. but doctors can not diagnose my disease. Initially doctor say it is parkinson disease, now another doctor say it is not parkinson. Sir i am so worried. I was just 16 year of age when this problem start. [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have gone through your question and understand your concern. Usually Parkinson is age related disorder and onset occurs during adulthood and elderly age group. Young onset Parkinson is also an entity and is mostly genetic based. Evaluation by a neurologist will be helpful. Close mimicker of Parkinson like features are Wilson disease and Huntington disease. Hope you found the answer helpful. Regards Dr N Kumar </s>