I attended the zumba gold class the day after the last post two weeks ago. I made it all the way through but I really crashed the next day and have been exhausted ever since. I hadn't eaten before the class as I read that it was more fat-burning that way. I promised a friend that I would go tomorrow but I am going to have a good breakfast with a decent amount of calories and fat. Maybe that will make a difference. (I had forgotten that Ken suggested that I raise my calories.)