For example, I had a middle ear infection and found out accidentally and the GP exclaimed, "Aren't you in pain?"
Had an abscess near the root of a broken molar almost 11 days and was unawares until the dentist asked "Aren't you in pain?" Suffered from shingles, no pain to speak of, took a week before visiting my GP to investigate prickly sensation on one side of my scalp and sores/blisters...no real pain, though others who've had shingles speak of excruciating pain.