Excruciating back pain?

Hi.  I'm new to the forum and have only spoken to one other person with UC so I'm wondering...does anyone else experience excruciating lower back pain with a flare?  I was diagnosed two years ago and after a long and difficult flare requiring two hospitalizatons, I have been in remission for almost two years with only some mild flares.  Two months ago, I started a severe flare that does not seem to be improving, even with the dreaded Prednisone.  I'm on 15 pills of Asacol, 1,000 mg of Canasa, 75 mg of the 6-MP and started the Prednisone almost three weeks ago at 30 mg.  The first week on the Prednisone, I was much improved, but the bleeding and pain started again.  I tapered to 25 mg the end of last week and was bleeding and in pain by Friday so I'm back up to 30 mg.  For some reason, the Prednisone doesn't seem to be helping much this time and,while, I've had back pain with a flare before, it's absolutely excruciating....anyone else experience that?  Also, I've communicated to my doctor that I am in horrible pain, but he tells me the only thing I can take is Tylenol, which does absolutely nothing.  Anyone else's doctor prescribe pain meds?  When I was in the hospital, I was given Morphine but I guess the doctor thinks if you're not in the hospital that you're not enduring horrible pain.  Thanks.