My hair does that too! I wear it up a lot, and the "outside," like the front, is stretched. When I take it down, I find this cluster of tight coilies in the middle of my hair. Also the coilies under there, buried under all the other hair, are usually still moist from dampness and/or product. It's very funny to see them, living in their own little universe in there.
lol- those terms are exactly what I would say- the outside is different than the inside- in there own little universe. Love it.