Is Pain Physical?

With all life there will be death. With love there will be suffering. Both are infinite but do either cause any effect on the physical world around us? What are we and all living things in face of the very still molecules that is our rock, Earth. When we love does it build some unforeseen by product of emotion that has effects on the world outside our consciousness? Is love somewhat like a radiowave or radiation, unseen by slowly changes the properties of the surrounding with prolonged exsposure? Or does it effect anything, I know of nothing that effects nothing. Its the very same with suffering of any kind. Even minor displeasure to some can be felt as pure suffering. The means of which caused it never seem to be important to the effect which is always the same. Do walls remember the pain held between them? Does a knife carry the blood of its victim forever? Does it take the memory of death and violence with it as it is broken down into new elements through corrosion and becomes the very soil that would one day sprout trees with fruits that could be eaten by man? Suffering is everywhere, constantly. It has been that way long before love, since the beginning of life. Since the very first time a living thing arose with the nervous system and mental capacity to experience pain there has been suffering.