^^ Yes, son of a friend of mine had the same thing (or something that sounds very similar).
MLP, Stephen had backaches months before his diagnosis. Pain moved around his back - from lower back to upper, one side... While it did start with a sports injury, it lasted for months and months. After being diagnosed, spoke with GI about S's constant ibuprofen use and GI said it was possible the ibuprofens triggered the crohns BUT it was also just as possible that the back ache, regardless of the original injury, was the result of referred pain/inflammation due to his onset of crohns.
Is it possible that he still has intestinal inflammation and it is causing the back ache?
Whatever the cause of S's back ache, he found that Tiger Balm ointment was a big help (do NOT use a heating pad with it!!! And do NOT apply after a hot shower/bath!) and massage also helped him quite a bit.
:ghug: