After doing 25 minutes of moderate walking I get heavy headed. I thought it was heightened BP even though I m not walking very fast. My pulse during this feeling when I took it today was only 72 beats per min. When I got home I took my BP after resting short while and it ws 118/78 . This feeling will last for about 1/2 hour after stopping exercise. My latest blood work shows my total cholesteral 202 (down from 264 six months ago), without taking any medication. My CRP is 1.5 (which was consistently coming in at 4.5 ). Seems like everything except my triclycerides (which are just touching the high zone) are all good since losing 15 lbs. I m 65 and was always active all my life except the past 2 years I have sufferred from headaches which a neurologist diagnosed after an MRI of head and neck, as most likely the being the occipital nerve causing pain due to tight muscles. I always seem to carry stress in my shoulders and my posture has been compromised. Could the heaviness in the head be a symptom resultng from bad posture or worse: something related to circulation, or heart .?