i'm 19.5 yrs old. i went to a hair doctor guy (Dr. Robert Leonard) who said that my crown hair was def thinner than the rest of my hair. I can only notice it when I take two mirrors and get really close to them under the right lighting. I got on rogaine foam and nizoral right after and stuck to it for last 10 months. no further loss imo, bt no gain. i guess it was a success then. Anyway, just three days ago I decided to get that prescription filled for Propecia 1mg Propak that I got 10 months ago. I'm just worried that maybe I should have waited until I thinned more. I mean nobody has literally ever said my hair is thinning or hairline receding. I think I'm comfortable with my decision. What would you have done and why? Thank You.