Does CP just make you suffer? Or does it damage your body?What does science say?

I am in a place where I'm considering going back to vaping medical flower. I like living sober so I'd prefer that. It's such a difficult decision to make. Pain is there always. I just woke up and it's the morning concerto. I don't like the idea of living in pain, but weighing all the pros and cons of each, I got to thinking: does poison just make you suffer, it does it actually damage your body is you don't put it out. Has anyone done that investigation?