Hair falling out very quickly and in high density

Hi,
My age is 28.

My hair fall started in August 2016. It was sudden and high. I console with a doctor where I come to know that my hair growth is 45% and hair fall is 50% and doc suggested me to take Propecia but I didn't due to its side effects. I tried saw palmetto for 6 months but no improvement. Now there is a dramatic change, hair fall is very high (I am on the edge of going bad), there is a pain on the scalp, hair texture is rough and itching continuously. I also tried Dr regenpure shampoo, but it increases the shedding.

Every day I go through a hair shedding as shown in the picture (Shedding). Now scalp is clearly visible. I do not know what is going on. One year before I have really high dense hair and now it turned out to be fast falling off. I roll my finger through my hair almost 2 to 3 strands of coming out, my sleeping pillow also has minimum 20 strands of hair every day, when I comb hair fall off and in shower 50 to 70 hair. in total I consider it more than usual.

For comparison, I have added my pic from Nov 2015 to till now. There is huge change in my hair and looks.

did your hair ever stop shedding?

No, It didnt stop. During bathing it shedd in high density. There is itching at the Center and side of the scalp. As move mz Hand through mz hair, the hair fall out. They always appears to be dry or greecy. Now density have decreased drasticaly.

Any suggestion on this.