I really feel you on this, the pressure sensation during induction is so uncomfortable and not many people talk about it beforehand. You are doing so well already being 8 hours in, that takes real strength. Since the nurse has said it is normal, try to trust the process, but if the pressure feels like it is getting much worse or you are worried at any point, do let the medical team know right away so they can check on you. Hang in there, you are almost meeting your little one.