Hi RB15, as you already said the biologic Infliximab / Remicade would usually be the first attempt.
I would wait for the result of the MRI scan (hopefully MRI Sellink for having a good contrast of the small intestine) before starting a therapy. That could reveal if there is a stricture somewhere in the ileum.
On the other hand adhesions could be an explanation for your abdominal pain. Those are difficult to diagnose without laparoscopic exploration. Do you feel a change in pain when you push your abdominal skin to one side?
I can not tell about adhesions from my own experience, I just know from this forum. But I can tell that I was having bloody stool from percussions during sports (jogging) when the end of my small intestine was inflammed.