Hey Alaina,
I thought of you last night as I was looking at info about metatarsal fractures. One of the ortho pages I looked at (sorry I don't know which one) said that in cases of non-union, 66% of patients had low levels of Vit D.
Have you had your D checked? Do you supplement? I don't remember if you ever mentioned this. D is so commonly low. Even mine was despite taking a multivitamin and living in sunny Texas.