Vitamins and pressure

I guess I am like a lot of people, I take vitamins in hopes of preventing desease and to feel better. I started taking lots of Leutin and 2 1000mg of bilberry each day since they are supposed to be eye vitamins. I told a friend about the bilberry and he said it made his eyes water and I noticed mine do too.  Has anyone who tests their own pressure ever taken these vitamins to see if they bring the pressure down?