### Patient: Doctor, I have been experiencing some weird sensations like loss of sensation and elbow cramps or spasms, also my eyelid is itchy and my elbow feels weak. Do you have any idea what could be causing this?
### Doctor: Yes, based on your symptoms, you may have Moyamoya disease. It is a rare condition that causes narrowing in the blood vessels to the brain leading to symptoms such as loss of sensation, weakness, and spasms in the affected area. The itchy eyelid may be an unrelated symptom, but we can further investigate that as well.