Nurses can only offer suggestions regarding pain relief but ultimately cannot deny pain relief to someone who is in pain and since pain is subjective, they have no right to question your experience of pain. my advice would be to discuss your fears thoroughly on your next visit, describe the pain, how its unbearable, if that is the case.tell them how you fear each visit, they will listen! i would also suggest that you take appropriate pain killers,(ones that you know work for you) prior to the appointment, allow enough time for them to work, and use the gas and air as a 'top up'