<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing weakness in one side of my body, problems with movement, seizures, and arm stiffness or tightness. What could be causing this?  <response>: Based on your symptoms, it is possible that you have hemiplegia. This is a condition where there is weakness on one side of the body and can result in problems with movement, seizures, and arm stiffness or tightness. 