Interesting you lost the tiredness side moving from finasteride.
Same happened to me, I had bad tiredness side from finasteride yet on dutasteride I have no sides.
I have acclerated my hairloss tho to point this is little hair left on the font of my hair, hairline is long gone. It could be shedding but as there is no sign of hair coming back then I do not have that much hope left even though I still wish it would work. A year on meds of different sorts and grually going bald...bugger. I keep hoping