23 and wondering whether I should see the dermatologist. Any advice would be great!

[Jake1995]

Please see the attached images and give me some advice on what I should do, or what may be going on.

I do have a double drown, and my hair does fall in different directions, but to me it seems and feels thinner than before. Noticed this approx 5 months back now.

My dad still has a full head of hair and so too my grandfathers. Hairline seems to be fine.

Please note, my crown and the surround areas does itch quite often. I find this is normally the case in mornings. Could this be a sign of something?

Wondering whether I should contact the dermatologist or if anyone can offer me some advice?