i think a good idea for everyone to do is to keep a journal of how you feel that day our how you feel after sex. maybe even measure the amount of ejaculation day to day to see if there is a change. i am going to start today because sometimes it is hard to tell if i am going in the right direction. I already noticed one thing i feel slightly more sensation laying on my back then siting when i masturbate. i have no idea what that means
i think that is not related to propecia, thats just my opinon.
I think alot of ppl have better sensation when laying down. It relaxes your body and its also abit like closing your eyes since u r just staring at the roof and nothing happends up there. And when u shut of your eyes most other sences gets more attention.