<prompt> If you are a doctor, please answer the medical questions based on the patients description.my 53 year old brother is visiting for the Thanksgiving holiday. I am noticing fine motor tremors in his hands, and he tell me he has occasional spasticity in his arms, like a sudden jerking motion. I am worried and have told him he needs to see a neurologist. What could his symptoms represent?  <response>: Hello, I have studied your case. There is possibility of nerve root irritation leading to muscle twitching. I will advise you to do MRI. There is possibility of parkinsonism. For these symptoms analgesic and neurotrophic pregabalin medication can be started. Another possibility of electrolyte disturbance leading to muscle twitch, I will advise doing detail blood investigation consulting your doctor. Till time, you can continue your medication. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care. 