marty,
When you spend long hours in front of the computer, you inevitably look at porn and in your case, you also come across tons of pics of scantily clad, oiled up behemoths here in Getbig, which by your own admission gets you hot and bothered.
That rises your body temperature and metabolism, making you sweat in places, which gives rise to the BO. The increased body temperature also makes your piss more concentrated, which is why it smells worse than usual.
You're probably tossing and turning in bed unable to sleep because your wife is lying next to you and you probably wish so was Kai Greene or Phil Heath or whoever your favorite muscleman in a thong is. That and your body getting all upset from the ups and downs of your heart, depending on whether you're discussing something dull like this or are looking at something that excites you is causing your internal biorhythms to go haywire and leading to insomnia.
My post is either dead on or full of shit. You decide.