I also go to the gym to lose weight. The coach said, don't eat high-calorie food for one hour before and after exercise and the last two hours. But if you feel dizzy after exercise and don't exercise at ordinary times, you should pay attention to the amount of exercise, step by step, and slow is better than fast, and then increase the intensity when you get used to it! If you have a coach, communicate with the coach more and find the right way to lose weight. Hey hey, wish us success in losing weight!