My hair is not homogeneous, is that ok?
I have many very thick nonsmooth hairs that look unhealthy, mostly on the back of my head. So even though I trim my hair frequently and I do not have split ends, my hair does not look healthy and shiny. To be honest I have not seen this type of hair on any one else around me so I started thinking that maybe there is something wrong with my hair. What do you suggest?
It's pretty common to have different curl patterns on the same head. It's nothing to worry about!
You probably just have some sections of very coarse hair. They are thick and wiry and might appear unhealthy because of their texture. This is just as normal as having different curl patterns on the same head. No one's curls are exactly the same all over.