So : PAIN COMES FROM ONLY ONE BODY.It’s true for you (for you, pain comes only from YOUR body). SO, THE WORKING OF A BODY (in good Health) IS NOT SUFFICIENT TO “FABRICATE” PAIN.
An “other thing” is necessary. If this “other thing” was fabricated by the body (or was in the body), a body would be sufficient to create pain: FALSE. Solution: this “other thing” is caused by itself. So it’s eternal and almighty: we can call it “God” (Spinoza). If you are not convinced, I suggest you to engage a lawsuit. My demonstration is so obvious (it’s not a demonstration but a pinpointing evidence) that you will lost!!!