I have a pain in head left and centre side

And...? Headaches are a dime a dozen, 3 billion out of 7 billion around the world every day.
What have you done to relieve it?
- tension
- muscles cramped from sleeping or working with head in one position
- eyestrain
- eating wrong foods
- dehydrated
- bad tooth that doesn't hurt itself
- sinus congestion
- allergies
- countless other common, not serious conditions

- something serious.

BEFORE you go to a doctor, they want to know if you took aspirin, Tylenol, or ibuprofin, or if you could have any of the first list.
Take a pain reliever, drink at least 12 oz water, and answer back in an hour.