So I have started to take Ab Cut pills by GNC about a week ago. It is basically a fat burner and claims to reduce stress and body fat from building. But lately about two hours or so after I take the 2 pills as directed with each main meal (breakfast, lunch and dinner) I've been experiencing upset stomach, nausea and dizzyness. The nausea part is what's making me feel very weak and unhealthy. Can anybody provide me with some information as to if this may be the cause to what I am feeling? I would really appreciate it.