Ok, kinda recap here. I've been noticing some hair thinning since 2018. Although back than it, apparently was "nothing to worry about" and, yes, with passing of time it appeared to have gotten a bit better. And that's what I thought, the actual reason for it looking "better" is probably because at that time I was growing out my hair (haven't had a haircut from like august 2016. to like April 2021.).
I've had this itchy, greasy scalp problem, for as long as I remember (since I was around the age of 14-15, and I am 26 now, turning 27 in september), and was recommended to use ph neutral shampoos, and was told that "it's pretty normal, you are too young, just live with it, wash your hair regularly...etc etc"
Which I did (I usually wash my hair every 2, every 3 days TOPS). My hair's definitely been shedding more than it should or maybe it's not, I'll see around 250-350 hairs in my shower drain when I wash it. It depends on how greasy/dirty it was, like was I sweating a lot, did I wash it like 2 days ago, 3 days ago...other than that I'll see/lose maybe like 5-10 hairs daily while combing/brushing it, or will see no more than 3-4 hairs on pillowcase in the morning. Lately I've started to shed on the back of the head, behind the ears, like I don't even have to pull my hair, some hair will just come off if I go through it with my fingers. Also whenever my hair starts feeling dirty I'll get this itchy/burning/tingling sensation, for which, again I was told time and time again that (it's completely normal).
2nd thing, I was just recently checking some older photos, some dating back to like 2010. I honestly I would argue that changes in my hairline from back then (14-15 years old) to now, are minuscule to none.
I would have checked even older photos, but I don't think anyones hairline is maturing/receding when they are like 12 or younger...
So other than this thinning on top, there are no other VISIBLE cases of me balding.
Since the first time I got here, I've used this forum, mainly to get some insight on how my hair looks to someone that has gone/is going through same or similar problem, and I finally pluck up courage to come to conclusion, that yes, something bad is definitely happening to my hair (I'm losing it) and to finally go to dermatologist, and not live in constant anxiety and fear of potentially losing it all, or living in a false hope that "oh it's telogen effluvium, oh it's chronic telogen effluvium, or it's vitamin deficiency, oh, I'm at that point in my life where I'm kinda stressed, oh, it will grow back on its own..." Without actually getting it checked by a professional.