Post finasteride syndrome on a single dose of finasteride, I’m 17

17M Hey yall, I took 1mg of proscar 2 weeks ago, I think I still have brain fog. Haven’t been able to sleep more than 5 hours this past week no matter what I did. Also haven’t been able to enjoy or laugh at the things I could just before taking fin. All of that might be completely unrelated to taking fin.  Have there ever been cases of PFS or persistent side effects after just a single dose, and how does being as young as 17 affect the chances? It could be just in my head, I hope that’s the case, but I really just want to know how likely it is that taking a single pill of a hair loss drug could be divine retribution for my vanity. 

Not possible. It has to be in your head, a Nocebo effect