There may be two reasons for the whole body ache: you can stretch more when you are not in the right posture during lactic acid accumulation training in the body, and you can rub the sore parts yourself. Generally, the muscle soreness will be the most serious within 48~72 hours after exercise, which should be the result of your first day of exercise. At first, your body can't bear the strength. You can consider practicing the pattern of taking a day off and stretching more after exercise.