you're a little young for shingles, but I suppose its possible. Also 70% of your generation does NOT have zoster. 'sides, Herpes Zoster isnt a virus, its a disease state caused by secondary activation of dormant varicella zoster virus. Also, I can assure you that 70% of 43 yo's havent had shingles.
Are you thinking about cold sores? (hsv1)