The 6mp could definetly cause the fatigue. It did for me. Maybe by knocking it back down you will start to feel better. I also know that sometimes Remicade can't take some time to work.
Been living with Crohn's Disease for 32 years. Currently on Asacol, Prilosec 60 mg, Estrace, Prinivil, Diltiazem, Percoset prn for pain and Calcium. Resections in 2002 and 2005. Recently diagnosed with Fibromyalgia and doing tests to see if I have Inflammatory Arthritis or AS.