Could there be a champion Kickboxer in you ready to burst into action? I first put on some gloves 10 years ago when I signed up to a Muay Thai class which whipped my body into shape and taught me how to punch, kick, knee, elbow and block. It became really addictive!
Sometimes you can be happy with your body and look well defined but you might have a little pouch or look slightly pregnant! It is normal to feel full after you eat, especially at Christmas time with all those parties. If you suddenly can't fit into your favourite pair of jeans then you're probably suffering from a bit of bloating.