Imagine that the space between your hands is like the filament of a light bulb, the part of your electrical circuit that gives off healing light energy. Send your energy thru opposite to what their circuit is. Then use your imagination to lock the glow in place, imaging them grounded, so that it is being fed from their own energy source. Or just send energy and watch where it goes. Particularly with muscle aches, the source of the pain is often at a different location from where the pain is felt.
Back problems cause aches elsewhere, digestive weaknesses affect whole other systems.
The logical mind is producing limitation after limitation. Because it must, that is it's job. It is for 3d navigation. It is the weakest part of your mind, your being. It can only work with what it knows, and it can know very little, in the overall scheme of things.