If you are tapering off of prednisone, that could be the reason you feel like that. Anytime we've tried to taper me in the past, we had to decrease in 1 mg increments or I would really feel it. But, we haven't been able to completely taper me off either...it always gets too bad once I get below 10 mg. Many people get joint pains and aches when tapering from that. But, Remicade can induce lupus, which could also make you feel like that. I would talk to your doctor...they may want to try slowing down the pred taper to see if that helps first and also watch to see if it gets better or worse after your Remicade infusions.
Crohn's Disease, Acid Reflux/Gastritis, Hashimoto's Thyroiditis, Endometriosis, Arthritis, Depression/Anxiety. Too many meds to list them all. =)