How many glands of your hair fall when u are taking shower? <prematurial baldness Q>?

I wonder how many glands of hair falling of u guys.I think i am in the brink of prematurial baldness,which concerns me so (who would say otherwise)., because i notice tha amount of my hair falling when i am scrubing my hair is noticeable. so how many of yours fall? please input as detail as you can,for instance i notice that more hair falls when i have not washed my hair for 2 days.