I have a bizarre symptom...
...[insert your own joke here]
...concerning real-timey games, especially the shooters: they cause my sinuses to drain. It is like I get a bad head-cold of the sort that does not plug you up. The faster-paced and immersive, the worse the symptoms.
Even the faster-paced of the sim-type games cause this.
Dunno why. I'm just strange.