I started taking a Nitric Oxide enhancer last week and was on it for like 5 days. During those five days I felt like my head was filled with helium and whenever I turned my head, layed down, stood up I would just about pass out. I stopped taking the supplement and everything is back to normal now. I was only taking the reccomeneded dosage and I have taken NO products in the past without this...So my question is I guess, why is this happening and should I continue taking NO or trash it? Thanks guys 
