Hair and skin problems. Geting darken!

Hello, I have been facing harifall that is not natural, I know that loss of 100 hairs per day is natural but I have left with very hairs, thickness, quality everything is just vanished. My hair are naturaly straight black silky and smooth, I don't even use heat or dryer. My hairs are becoming thin, they have lots Of sliptends, little bit dandruff (which increases during winters), though I have a haircut due to sliptends but still can't get rigid off. Please help me I have left with very few hais at this ag, when I compared my hairs from previous years I got to know that I have been loosing hair quickly than development of new hair follicle... I'm getting darker completion day by day, I was borned with very fair skin and have spoiled it, my skin is a bit sensitive and some times dry & oily. I get tanning very easily and is not removed that easily, I have seen people with 1 or 2 wash they get rigid off but not with me. have no acne but have dark circles which is geting darken