I thought it was the other way around, but I recently went from MOing about once a day (w/o porn) to not MOing at all this past week. And I got sick (which I rarely do!). Do you think there's a connection, or just a coincidence?
Health is directly connected to your mental state, and a variety of factors. Are you eating as well as you were ? Are you eating healthy meals and drinking lots of water ? Are you feeling down, or depressed (that will let invaders into your body much easier). Are you in public places / around people often ? This is the way viruses and bacteria are shared, in enclosed environments. Not ejaculating in itself will not make you sick.
Well geez, now my comment looks asshole-ish by association. I was just playin, IGY! not trying to nitpick your comment to death.
I think our mind like to trick us into relapsing so your sickness probably has no direct correlation with you not masturbating.
Sounds like a coincidence to me. It's true, when overcoming an addiction/abstaining from something you have a habit of doing, you might be more stressed, and stress itself can weaken the immune system, but you're not quitting a heroin addiction, you were MOing once a day without porn - it's unlikely your body is any more stressed than it was before - if anything, it should be a little less stressed. So, once again: coincidence.
I think there are symptoms associated with withdrawal. When you brain is used to getting its fix daily, or multiple times a day, and you suddenly stop providing the fix, your brain can react. In the past I have had recurring headaches around the 7-10 day mark, but in all honesty, I'm not 100% certain this was nofap related.