Should I b worried bout a bleed happening in the brain since I'm getting pains & headaches quite often & I get light headed. I've had a MRI & CT 4mths?

Unlikely. In someone your age it would be very, very rare to have a stroke, ischemic or hemorrhagic. It is far more likely your headaches are due to a benign cause. Seeing a neurologist who specializes in headaches, if this is a chronic problem, is likely the most appropriate next step.