posted on Apr, 19 2005 @ 04:14 AM
Are you hydrated?
Not drinking enough liquids can cause a headache, even if you don't feel thirsty.
Lack of vitimin "C" can also cause headaches, especialy if you smoke.
And anemia, lack of iron can aslo cause headaches...
I'm sure there are many more reasons but they are the more common ones.
Forget the pills, try the juice of 3-4 slices of lemon in a cup of tea.
[edit on 19/4/2005 by ANOK]