My husband is 75 years old and has been lethargic several days a week. He also has had chronic neck pain. He is a smoker of 20+years. He was having dizzy spells a few months ago and the doctors performed a carotid artery test as well as chest x-ray and both were fine. Additionally, a brain aneurysm was detected several years ago and his recent MRI was fine. I am getting concerned as he does not choose to go to the doctor