My question is about my husband. I am not sure when to worry and he won't talk about going to the doctor! About a week ago, he was working out like he usually does and got real dizzy on the eliptical machine. Ever since then he has felt a bit different. Yesterday he got winded just running across a parking lot and has had a tight feeling chest ever since working out yesterday. He has achy legs and not much of an appetite. Do you think it's a bug or does it warrant a doctor visit? He is overal good health and has maintained a 100 pound weight loss for the past year now. He works out 3-5 days aweek as well. Any thoughts?