"Fear, then. Or worry, more accurately." Fear for others was really all that worry was. Loki didn't miss the little spark, either: remembered worry was almost enough to touch it off. Judging from Thor as a child, the sensitivity could indicate a higher potential power level... strength manifesting more strongly. "Fear is manageable, but this may be more difficult for you." She knew she worried. It wouldn't be a revelation. "The breathing worked, though. Until we've worked out some other control method, that should help somewhat."