am i balding????

[realroundpizza]

Hi, I was wondering if I was balding. I have an undercut hairstyle and my hair type is fine and straight, although in these photos it's styled so its kinda wavy. my hair in the front of my head is thick, although the hair around the crown is pretty thin and under light you can see my scalp sometimes if a chunk is moved to the side. there is also a noticeable difference when i run my hand through the front to the back of my head, as the crown hair is lighter/thinner, as well as when i part my hair there is a deep part and from front to back the part gets more visible as it comes closer to the crown. help!!

ive also been trying to use "jack black true volume thickening shampoo" as well, although it only worked slightly.

pics
http://imgur.com/qrRWD08
http://imgur.com/gDJ6oqm
http://imgur.com/6cg2b4C