I was on Cimzia twice, both times for about
a year, and never had those problems. But, I already had arthritis prior to starting it, and it helped some but not as much as we'd hoped. I would recommend seeing a rheumatologist, if the GI won't help you with this. It could be drug induced lupus or it could be that you're developing crohn's related arthritis. My GI won't touch the joint problems, so I see a rheumy for that. They can give you pain meds, arthritis meds or even stuff like Voltaren gel that you rub on the joints.