Did you notice The Crohn's resource link to the right of the posts? I has very helpful information about things Crohn's sufferers can do to help themselves. I was especially thinking of diet changes. I have a lot of pain and cannot use pain killers, but have found the SCD and other dietary changes to be very helpful, not in replacing my Doctors care, but in addition to. I have a nephew who was DX'd @ 4 years old and even after 2 resection surgeries, he has benefited greatly from the SCD. His joint pain and fatigue have greatly improved too. Have you discussed the back and leg pain with your Doctor? If not please do, these can be signs of a flair coming on, the nerve to your legs runs very near the part of your intestine where you absorb nutrition, and could be a sign of new inflammation, that prevents absorption, and that would be good to know before you go into a full blown flair.
Crohn's for life, symptoms included terrible joint and soft tissue pain, just met first cousin who suffers from Reiters-explains sooo much. Great control on SCD (when I'm good) and I get by with a lotta help from my friends!