The surface EMG is the software side. I put small, non-invasive electrodes on the skin next to your spine, and the computer reads the electrical signal level by level. It is like an EKG of your heart, just for the electrical signal coming out of your spine. It helps us see how the nervous system is functioning, not just where it hurts.
The digital X-rays are the hardware side. High-frequency films (less radiation, better quality), AP and lateral views, and an AP open-mouth view for headache cases so we can see the atlas and axis. I put your own images up and explain what I see in plain language. The two together help us see exactly what is going on before you decide anything.