If you're going to start or have started just take 1 pill a day. Don't do this every other day nonsense or 1/4 a pill. That's BS.
If you're going to quit just quit. There is no cold turkey... Thats more BS.
I took the pill 8.5 years. Had to quit for a week or two here and there due to running out of pills or being on vacation without them and noticed nothing.
When I did finally quit I noticed spontaneous erections and morning wood. That's about it. Why that went away I can't say.. but everything was still working and I masturbated and or had sex regularly.
I quit because i was done altering my body's natural chemistey, did start getting morning wood which made me think twice about taking it, and was nearly 30.
Also if you take it. Stop reading about it online. Just take it and move on.
And maybe take Ibuprofen occasionally for that testicle ache in your left nut