My right side brain and head hurt vrry much at times why is that? & I get very light head on short trips like to the store or friends house.

See your doctor. Headache pain and light headedness can indicate problems with the heart. If you have any risk factors like high blood pressure, diabetes, high cholesterol, obesity or you smoke, it is important that you see a doctor to have these chronic conditions managed. High blood pressure in particular has few symptoms until there is vascular damage in the kidney, heart, or brain.