Hi, I’m 20 years old and have never had a problem in terms of my hair or thinking I was bald. However I have noticed that my hair near my crown seems thin and there are gaps in the hair showing the scalp. I have no frontal lobe recession or near the temples. Could this just be a cowlick or is the crown naturally thinner or is it an early sign of balding? I’ve provided two pictures to show what I mean.