Well, gee, I have gotten so chatty lately, let me chime in on this, too!
Beware, as this may venture more than a little too far into TMI!
I think, without looking it up, that I am going on three and a half to four years on PM now, without any real break, and averaging 2500 a day (though sometimes as little as 1500, and sometimes as much as 3500).
Since age is likely a factor, I am 61, so when I started I was, what, 57?
During the first year I noticed erections becoming difficult to manage, though still possible.
During year two I noticed emissions changing from milky to clear, and the amount diminishing. Erections became more difficult to attain.
In year three, emissions dropped to minute quantities, if there was any emission at all. That was really freaky, the first time I noticed that! The equipment itself was also shrinking.
Now, in the fourth year, erections are very rare. Emissions are non existant. And the equipment has diminished in size dramatically. Testes have atrophied so much they now live most of the time halfway inside. While "old one eye" has become so shrunken it is sometimes difficult to actually "dress" to either side successfully.
I have been contemplating taking a break for a while, just to see what if anything returns. But my guess is that regardless of what may or may not come back, that my fertility is likely gone forever. Not that I care about that. I have kids already and want no more.
On the upside, I do get a much "cleaner" line in my skinny jeans.
Does this help to answer the original question?[/i]
