Walk pose acts very weird

So I have animated a character in Blender, the hair and shoes are seperate models and are not parented to the mesh.
Everything works fine in Blender. A picture below to show the walk pose:



so I export everything into Unity, scale things up and are ready to work on a game. What I see is somewhat random:



The hair is at a random position, the shoes are not animating along with the feet like they did in Blender. Everything went messed up.
Too bad I worked on this for such a long time. What can I do to solve this? Repositioning everything wont work, at all.

I just want the hair and shoes to follow along the animation like it did perfectly in Blender. I exported to .FBX format.

Please help.

 

You need to remove the animation components from the non-animated objects, position them exactly where they should be, then parent them to the proper bone.

Make the hair a child of the Head bone, for instance, then zero its position.