Male Baldness Info

I heard that one side effect of taking Propecia for male pattern baldness could be impotence or loss of sexual desire and I didn’t think anything of it… I started taking the drug and within one week noticed a drop in my sex drive and a few other changes down below (in size) but ignored it. Anyway, 2 weeks later and i’m still kind of un-interested and had to force myself the other day as I was so worried. Is this all in my head? Is there anybody else out there who has taken Propecia and experienced loss of libido/impotence/lack of sexual desire? I’ve done loads of reading on the net and it seems that this is a BIG problem for lots of men, and some of them…. the side effects have been irreversable. I’d rather stop taking these now if thats the case. Any advice Much appreciated

Hello, im 19 and i just started self medicating with Finasteride as im showing male pattern baldness ive just started off with 0.5mg I was just wondering if this stuff can cause you permanent infertility?
Also does anyone know what the best dose would be, ive read allot of different studies saying that 0.2mg is almost identical to using 5mg and others saying 1mg is the best, im not quite sure what to believee.
Thanks for the help