EXPERIENCING HAIRFALL need advice on this.?

I have been having hairfall for about 3 years. iam 17 years old.i had a appendix laparascopy surgery 8 months ago.and my hair line is also receding now.i am having good diet. and alomst have stopped fast foods.but i dont have much physical activities. and applying hair oils.i have a thin hair and it easily falls when i massage oil to it.iu am very worried about it.my scalp is dry. iam using shiaka powder only. i use it two times in the week after applying oil.after washing hair with shiaka my scalp is getting a sticky gelatinous white layer. and after drying it forms a thick mass that attaches it to the scalp when i try to remove it with a comb. my hair falls. it also forms like hard transparent layer on my upper fore head also. when i scratch it it comes as a layerand my hair falls and it has resulted in receding hairline.
i used to have thick lush hair. seen drastic changes in these three years. and also affecting my confidence also. also have some small bumps here and there in the scalp. and the white layer forms even after washing with a shampoo. and now taking a biotin suppliment every day for 3 months.and it forms like a white layer but transparent layer on the areas of scalp.and when i sweat my hair itches so badly that as if i wanted to pluck my hair out. i also drink good amount of water daily. and have tried almost every thing but nothing seems to work for me. i used to be very handsome guy. but my physical appearance is itself is affected by this hair fall.
please kindly help me out.Thank you.

You only use shikakai and oils? What kind of oil? Do you use Amla too?

http://forums.longhaircommunity.com/sho ... php?t=1124

Do you have soft or hard water at home? If yo have hard water then install a filter or something.

Good luck!