In another thread I realized that I wasn't sure whether for most victims, PEM severity varied with with the trigger magnitude. I think mine is more or less the same whether I overdid physical exertion a little or a lot. Overdoing it by a lot might make the PEM take longer to fade, possibly because the triggering cytokines are produced for longer (the muscle damage takes longer for the immune system to clean up). I'm less sure of whether my mental-exertion triggered PEM (if it is actually PEM) varies with the trigger severity. Not enough data with varied levels of social activity, plus the difficulty of measuring PEM, especially when suffering from mental lethargy. So, what is the answer for the rest of you? Does it vary in severity, or duration, or symptom type (maybe strong triggers add headaches, or extreme flatulence or whatever) with the trigger magnitude? Feel free to include other interesting responses, such as varying with time of day, or phase of the moon, number of cell phone calls made, etc. Maybe something useful for researchers will turn up.