At long last Pat's power is now at full swing. Since his power is a little weird (the pain aura radiates half the pain he feel, but what does half a migraine feel like?) I'll provide a bit of clarification. Anyone near Pat will get a headache that's bad enough that you'd probably want to take some kind of painkiller, but not bad enough that you'd have to call in sick for work/school. These aren't the most specific specifications so as long as you stay away from the extremes (your character isn't going to go into shock if they walk near Pat) you should be fine.