Many possibilities: Probably the most common indication is worse headache of your life. Otherwise, has there been a new neurological symptom such as weakness, numbness, temporary loss of vision, loss of sensation, etc? There must have been some neurological symptom your doctor is trying to track down as to its cause. Many times the scans are normal and this helps your doc exclude an intracranial cause for symptoms.
Answered 6/12/2019
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A doctor has provided 1 answer
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