I would avoid orthotics as long as possible. I think they're way over-prescribed.
Did the chiro do any sort of test of your hip function? I'm thinking things like your ability to balance on one leg. Or your ability to ensure your glutes are firing and working as they should.
Many issues are rooted in the hips. If your chiro didn't do this I would look for another chiro or a PT. There can be all sorts of things that don't have pain can actually be the root cause of where the pain is.
Jim