Is my crown thinning or am I paranoid

[Napstajam]

I’m 17, yes a little young to be worrying about this, but I love my hair. It’s always been thick and still is but ive noticed my scalp is visible where my crown is. I don’t know if this is normal or what, so I wanted to see if someone could help. I also have a double crown so I have a wierd line connecting them, it’s always been there since birth. Anyways I’m going to attack some pictures, some will be in harsh light to make it more noticeable, and some will be normal lighting. I will also attack a picture of my hairline too, for more backup.

[Spex]

Hey man,
Your hair looks great. do NOT sweat it. Get out and live you are 17 dude!!!!!!
Regards
SPEX