When I had horrible body/joint pains, Darvocets didn't work for me. (the first time it didn't touch my pain) My GI gave me 40 mgs of Prednisone and within 2 days I felt better and I tapered off it. Have you had your inflammation levels checked? It sounds like a bad flare-up and that you may need better meds like Remicade or Humira. Just a guess.
Diagnosed with Left-sided UC in 1995 at age 15,
Prednisone, Rowasa & Hydrocort. Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Aloe Juice, Canasa, Enotcort, Colazol, Anamantle, Remicade, etc... had 1 inch deep rectal ulcer 2004, put on Remicade, August 2007:Increased Remicade dosage-700mg every 6 weeks,diagnosed w/ Psoriatic Arthritis & Fibromyalgia Current meds: Clorazepate, Lomotil, Tylenol pm, Lyrica started 1/17/08, Humira started 4/4/08