This energy use not only leads to fatigue during walking, but it also robs you of the potential energy necessary to walk at a normal speed. The more you compensates to walk, the more energy it takes for you to walk the same distance. In short, the way you walk is not normal to look at, you use extra energy while compensating, and you are walking more slowly .In normal locomotion, the body uses energy from the last step to help move the body forward, as speed is increased the body becomes efficient. If the normal momentum is lost in a compensated gait pattern, then more energy is required to move each extremity. The less efficient the body becomes, which is very taxing on the metabolic system.
Fatigue sets in, which limits ones activities.
Anxiety and pain also robs one of precious energy.