Shedding Healthy Hairs

[coolerking]

I've been on finasteride for a little over a month and just recently I've noticed shedding in the shower (don't know what it was like before finasteride because I never checked). After I run shampoo through my hair i'll have at least 25 hairs on my hands, more than half that look completely healthy and not thin. Some other hairs are thin and shorter than the rest of my hair. What does all of this mean, should I be very worried?