I have an active cold sore virus in my system right now, but apparently my immune system has built up enough of a resistance to it that no cold sores are actually appearing. Basically what's been happening is that it's been bouncing around in my system for about a month even since I had the flu in February, and it's not leaving but wreaking all sorts of havoc on my psychology and just generally turning me into a lethargic, chronically anxious douchebag. It really sucks, and I'm about at the end of my rope.