I'm not sure about the joint pain (knock on wood I don't have that issue yet), but for me it took 4 weeks before I began to feel the results of the humira. And then it was dramatic -- no more pain, formed stools, more energy. Hang in there!
Dx Mild Proctitis 7/06 at age 33, Dx Severe Pan Colitis 5/07, Dx Crohn's Colitis 10/07
Failed Asacol, Lialda, 6-MP, Canasa, Rowasa, Entocort, and Remicade
On Humira since 1/08 with promising results, but can't get below 5mg Prednisone
Take Tylenol #3 as needed when not in close proximity to a bathroom.
Put back on 40mg Prednisone again during mid-March flare, ack
4/9/08 Humira dose increased to 40mg/week
Down to 10mg pred