For those of us who carry a few extra pounds, life can feel like a never-ending treadmill of diets and possibly exercise.  Suddenly dropping some unexpected weight may sound great, but certainly shouldn't be accepted as a gift of the gods.  To suddenly loose weight, your body must be burning up more energy than you are eating - and if you haven't cut back on the food or upped your exercise levels then something else must be causing it. There are dozens of potential reasons: from digestive problems, to infection, to depression or anxiety.  Unexplained weight loss can be caused by undiagnosed cancer, so always go to see your doctor if you start to shed pounds unexpectedly. Source: Benenden Health