Im turning 17 years old, my Mom told me that when I was little there is a hole that had almost touched my spinal cord right above my butt bone, it gave me problems when I was little to where I couldnt walk. But now my actual butt bone hurts, and my spine does as well. What is this?
there's no way to tell from your description what is because there are many possible reasons that can only be evaluated by a doctor.  Ideally you should start with the pediatric neurologist who take care of you.  He will be able to tell you whether you had spina bifida or a myelomeningocele or just a Mongolian spot.  The reasons for your pain may or may not be related depending on what it was