Thinning hair

My hair has been thinning for a few years now at the front but not anywhere else. You can see my straigbt to my scalp a couple of inches deep into my hairline and since my hair is very dark it's hard not to notice. I think it's mostly stress/trauma related so I'm trying not to develop a complex about it but a lot of people have been pointing it out to me lately. Nothing rude or anything like that, mostly from a place of concern like hey you should fix that or get it checked out. I've been doing a lot of therapy to help my underlying and longstanding psychological issues (ptsd, anxiety, depression) but I've had thinning hair for so long I'm worried it's something more. My mom is 60+ now and she also has a receding hairline. I'm afraid I've just skipped past my good hair days and gone straight to balding. My cousin has alopecia and has lost most of her hair as well but I don't know if that's relevant. Should I go see a doctor? Has anyone else had this sort of issue? Advice?