Why do my gles feel unbalanced?

This question would be better answered in a more appropriate category. Gles feel unbalanced for several reasons - one lens could be heavier than the other, your ears may not be of equal height on your head, or your cheeks may not be of equal heights. Any of those can lead to the "legs" of the gles to be out of balance...very much like tires on the car when the pressure is not balanced. The final possibility could be the frames are not fitting on your face/cheeks properly. Why don't you go back to where you pruchased them? They adjust then at no charge. If not where you purchsed them, go to any place that sells gles and you will be charged a nominal fee for an adjustment or fitting.