I noticed a decrease as well, but it wasn't from Remicade...it was definately a uc thing in my case. Things have improved alot, but sadly...sigh...I'm still not 100% in that department...
If you don't have the energy...well you know the rest...just make sure you're taking your mulitvitamins, drink lots of water and watch what you eat.
Diagnosed with Ulcerative Colitis January 2007
Remicade, Primal Defense Ultra, Multi-vitamins (also iron, B12, Magnesium and Zinc), Flaxseed/Natures Bounty Fish Oil
Swanson Ultra Caprylic Acid (natural anti-fungal) 600mg x2 daily
Carrot & Garlic supplements (natural anti-fungal) x2 daily
Currently taking herbal meds in the search to regain full health.