Have you been spending a lot of time in the gym but you are failing to lose any weight? There are explanations. See Why you are gaining more weight while spending lots of time in the gym:
1. Water retention: This could increase your weight. Water is not always good for you.
2. Muscle gain: It will surely happen when you exercise. When your body composition is changed with your workouts by building more dense muscle mass and reducing your body fat. Your scale weight may increase, while your body fat percentage might drop.
3. Body response: Working out does not mean your body will respond to it instantly. It needs time to adjust.