My husband wants me to buy him some vitamins because he says that when he is at work and he leans forward and stands up he gets dizzy every time. He just 30lbs in 1 1/2 months because he stopped drinking and cut back on his eating habits. I told him that he should got to the dr but he doesn't want to. I know that vitamin b-12 is for energy. What would be good vitamins to buy him? Thank you for your help.