<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi Doctor, I have been experiencing a severe headache and some people around me noticed that my eyes looked different. I think there might be something wrong with me.  <response>: Those symptoms could indicate a subarachnoid hemorrhage. I would recommend performing several medical tests to confirm the diagnosis. We need to do a radiographic imaging procedure, a head CT scan, and a kidney function test. A CBC, hematologic tests, and IV fluid replacement will also be needed to identify the underlying cause of your condition. 