Hi,
Thank you for posting your query.
I do not think your spinal problem is related to your 
headaches. 
Headaches are most likely to be due to migraines, which ni addition to causing headaches, can cause 
dizziness and 
vomiting. 
Normal scan is a reassuring news.
You may take 
rizatriptan tablet to reduce the headaches. Preventive treatment would be required if you get frequent headaches.
Please get back if you require any additional information.
Best wishes,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad,
My personal URL on this website:  http://bit.ly/Dr-Sudhir-kumar 
My email: drsudhirkumar@yahoo.com