Everything about you is normal and well done, except that you are not dressed properly. Exercise brings you more health, full spirit, cheerful and happy mentality and a well-proportioned figure, rather than a slightly tired artificial weight loss effect. Because running mainly depends on the lower limbs, it is normal for leg muscles to become stronger and harder, so don't care! Also, take off your cotton-padded clothes and go into battle lightly, and run to your health and the beauty that health and happiness bring you!