Finasteride causes higher dht sensitivity?

[JFols]

I have taken fin for just over a year and it seems to have done nothing for me, so I'm thinking of coming off. If just turned 20 so don't want to be on it unless I have too. But my question is, does taking finasteride cause higher sensitivity to dht? Is that why the drugs benefits wear off over time S you become more sensitive to dht? If so that would make the links between heart disease and dht more worrying as we don't want to be anymore sensitive to it then we are! ( if you believe reports) thanks!