Permanent damage is an odd concept. It reminded me when adults used to threaten me as a child into behaving with the term "permeant record." The reason why it is odd is that the body is continually adapting to the stresses you are placing on it. Unfortunately, we do not get to choose the rate at which we adapt to the stress we put on it, though. Some of us adapt faster than others, and some times we make adaptations that we do not want to have. If you keep adding weight, one of the adaptations that will likely occur is that you will start experiencing more pain at lighter loads. Your body is doing this to try to protect you from the activity that it perceives as threatening. With this in mind, my recommendation is that you lower the weight and build back into things slower than you want to before this adaptation that you don't want gains some momentum.