So here's an issue I've run into. All my life I've gotten cold sores as far back as I can remember (elementary school at least), but in the past 5 years or so they have greatly subsided in frequency; I even had an entire year without any 2 years ago.

Now that I've begun cycling again after taking 5 years off of cycling... suddenly I'm having frequent outbreaks again; I've had 5 since May. Does anyone have any clue why this might be happening? The only thing I can think of is that they are related to the extreme amount of exertion I am putting myself through. I noticed in the "quiet" period where they happened maybe once a year, it was always during periods of extreme stress. So maybe when I'm cycling, I'm putting myself through more stress than I'm accustomed to (going far out of my comfort zone), and maybe that's creating these outbreaks?

Or am I way off base here? Lately this has been bugging me and I would hate to have this newly rediscovered hobby cause this stupid condition of mine to act up.