Sounds like some manner of mental self-defense. You might want to hold off on listening to that one for a while, or maybe try a different file to see if you can use other triggers without so much trouble.
Seconding the "trigger, not curse" vote. There are too many 'permanent' files, and while I'm sure some people would like to keep their effects, others (myself included) would be more interested in trying out different transformations temporarily.
I'm not sure if any of her files are here at WMM, but Tasha from eSuccubus has some good TF files that lean more toward the setting and process of transformation.