If you ask for pain meds by name your doctor may question your motives, or lable you a drug seeker. My GI will NOT prescribe pain meds, the only time I've ever had them was in the hopital, or after surgery. If you build a resistance really fast it's probably best if you don't take pain meds at all on a daily basis, because when you REALLY REALLY REALLY need them, they won't help and building a resistance to pain meds is a slippery slope leading to more powerful drugs that are higher risk of addiction.
Did you have this pain when you were on a higher dose of prednisone? If not then you should probably up your dose again. Pain meds mask pain, they don't fix the problem.