24 year old male - what in the WORLD is going on with my hair?

[cmcgin202]

Hey guys, I'm trying to figure out what is going on with my hair, and what I should do to treat it, if anything.

I have extremely curly, coarse, thick, wiry hair, when it gets a bit longer, it becomes easier to manage, but the it's very rough and tough when it's short.

So, I got a haircut last week and someone commented that the back of my head was thinning. I took some pictures, and it does look that way..but it's very strange and spotty.

My hairline in the front is fine, no receding. Same shape it has always been.

Also, the sides of my head appear to be thin aswell, but the top is SUPER healthy and seems fine.

The back of my head has ALWAYS been weird. I get it from my mom (ie, not your typical circle near the crown, it's always been this weird line with kind of a cowlick in the back)

What's your opinion on this everyone? Is this MPB? Why is it weird on the sides and back? What should I do?

I started taking biotin this week, to see if anything happens.

Chris