I have really, really weird problem. Please help me out !

[snpdgg]

Hi everyone. I am new at btt forum and i have really weird problem about my hairs.
I have never had hair loss porblem. When i have finished high school, my hairs ( only temporal region ) slowly changed ( and also my beards began growing ) . I can not explain exactly but my hairs look like beard and it has also different colour. Actually i have caramel-coloured hairs but that zone is black, i have straight hair but that zone is very very curly like my beards. By the way i went doctor in 2015, he couldn't say anything. I attachted photo.

So is there anyone for help ?