It might… I do have to confess I haven’t been eating a lot of vegetables lately and I eat a lot of cheese (low fat, since I work out in the gym), maybe that could be it?
However, pain is there even if I get an erection after orgasm without urinating in between. So that explanation could be only half correct.
As for precum, I don’t produce a lot, there are usually just a few drops, enough to spread it over my glans and not more than that.
I talked to some people about it, two friends of mine say they also sometimes experience pain with erection after orgasm, so I guess it’s not that uncommon. I just hope PE won’t affect in in negative way.
One of them has told me he has a lot of precum, which is opposite of my case.