I Had Surgery On A Kidney Stone. A Stent Was

I had surgery on a kidney stone. A stent was inserted and due to the infection the stone was left. I don't know if it was my imagination.,previous operations it was total unconsciousness. This time I heard conversations. Is it a form of dreaming or was it when I was coming around. This is not a complaint. I was overwhelmed by the care from every aspect of my stay in hospital.