I would be concerned with all the thirst and drinking, yes.
I don't think wearing a belt too tight would do anything, at least I can't imagine how it would.
Leoniss wrote:Can it be psychological even if I'm single?
Sure. All it took for me (I have performance issues) was just a couple times for it to get stuck in my head. it's awful hard to get it out of your head, once you do that.