I've suffered from POIS for many years, but I also have another problem: if I don't ejaculate for more than a week i start getting joint pain, neck pain, back pain... So for me, preventing ejaculation or giving up sex or masturbation altogether don't seem to be valid options. Am I the only one who gets these symptoms?
It's very interesting that you mention this! It's not something that is mentioned here often, and I think it's because it's kind of hidden by the fact that most don't make it beyond 5 days or so to have another orgasm.
But I've noticed it with the niacin. Niacin has me clean, basically "POIS free", but I've notice too, especially because I am in a cleaner position to see it, that if I go more than a week without sex, that "Some" of the symptoms show up without ANY stimulation.
I think this might also be the cause for some who NEVER from POIS even if they abstain forever!
What I think, is that there must be a build up (of semen?) and the system proceeds to dispose if it internally, just as it does with someone who has had a vasectomy. So even though we do not have and orgasm or even arousal, we may feel effects of POIS.
In my case, the effect is quite light however. And I usually don't go that long without sex, so I hadn't really noticed it until recently.
An interesting point.