Lower back pain and colitis

It's not unusual... I experienced something similar a year or two ago. My lower back really hurt and I couldn't straighten and lift my legs, like on the quad extension machine at the gym. I believe at least one other member here has mentioned having the same problem. I went to a chiropractor for a few sessions and got quite a bit of relief. His thought was the inflammation in the abdomen from a UC flare can also cause related inflammation in the SI joint of the lower spine.

http://en.wikipedia.org/wiki/Sacroiliac_joint

i had terrible back pain while flaring. i've always had sciatica issues, but in addition it was like a sore achy feeling that went from my back to my guts or something. it was painful, i took warm baths morning and night and that helped temporarily. when i could get out of bed for more than 1/2 hour at at time i started going to the chiropracter, which i think helped a little. hot pads helped too, at least it's soothing whether or not it helps the problem. good luck, i know it's miserable.