I don't know. For me, when I'm sick (which hasn't typically been often actually) my resistance is just down & so it's more difficult for me to maintain control. I keep enormous amounts of stuff tightly bottled up inside. It takes a lot of energy. And if I'm physically ill on top of it, it just becomes difficult to keep it all under wraps, so to speak. One part of it all is a constant rumbling of anxiety. So, in addition to everything else, I tend to become short-tempered. That happens when I'm physically tired too.