Well those are spots where I get joint pain too, not the shoulders but all the others you said... my GI said that is classic UC arthritis. Do you drink milk, have you tried keeping a food diary? I know you must be really frustrated with the results of the test since you are feeling so lousy.
Diagnosed with Left-sided Ulcerative Colitis 1995 at 15, Tried: Prednisone, Rowasa & Hydrocort. Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Canasa, Enotcort, Colazol, Anamantle, etc... had almost recto-vaginal fistula in 2004, put on Remicade, August 2007:Increased Remicade dosage-700mg every 6 weeks,diagnosed w/ Psoriatic Arthritis & Fibromyalgia Current meds:
Remicade 700mgs every 6 wks (had reaction, will start Humira Feb 11) Clorazepate, Proctofoam HC, Glucosamine 500, Vitamin B, Lomotil, Tylenol pm, Lyrica for Fibromyalgia started 1/17/08