Both anecdotally and also based on the research i’ve been performing. I hypothesize that the problems of Finasteride originate from disruption of bile acid metabolism and an unfortunate combination of other issues that sets the body into a vicious cycle. In the link below i discuss about Chronic fatigue syndrome but i also believe that PFS, Post-accutane, post-lyme disease treatment syndromes are all related.
http://algogenomics.blogspot.com/2019/01/liver-bile-acids-and-thyroid.html