Why does heart race and bp increase when i eat something with lactose?i am very intolerant to lactose.

Lactose intolerance: lactose intolerance is fairly common. It occurs in people who are deficient in the enzyme which breaks down lactose, the sugar that is found in dairy products. Since the sugar can't be broken down, symptoms develop. They are usually abdominal symptoms. Your options are to avoid dairy products or to take oral lactase in some manner. Talk to your doctor about these options. Good luck.