question: Husband 85, had bladder cancer, 3 years ago, clear now, had heart surgery 35 years ago, had diphibilator placed 2 years ago, blood pressure runs low average (111/58), had cataract surgery 3 years ago. Blood tests reveal low on vitamin D, enlarged prostrate, stage 3 kidney disease, bit high on cholesterol reading 220, presently frequently feels dizzy when walking, (notice that his pupils don t seem to dilate) and wondered if that might have anything to do with why he gets dizzy. If not, do you have any other suggestions as to why the dizziness.