16 Jul 07
Headaches can come for 1000 reasons, important ones are due to: 1. Insufficient eating 2. Severe stress and strain 3. Working in hot climate - exposure for long time to sun 4. Performing same task continuously 5. Exposure to toxic materials continuously like paints etc. 6. Improper digestive system 7. Due to some problems with eye sight Many many others. Experiencing headaches in the morning could be due to improper bowel movement or stress or strain, improper sleep. This can be overcome with drinking clean water, regular exericses etc.
17 Jul 07
I experience the same headache too when I wake up. The pain is like waking up with a hangover after a drinking binge the previous night. I'm not sure if it's related to eyesight or stress as these are the only possible reasons I could think of based on the list in the response above.