I'm 26yrs old when I started taking Propecia. I took it for 2 Weeks! When I begin noticing side effects (i.e. Low/No Libido, ED, brain fog) I discontinued use. However, it's been over 3 Weeks since I've stopped and the side effects still remain! How long before they go away, if at all? I thought it only takes a few days for the drug to leave your system? What can I do? Will it ever return competely to normal?