Sometimes too their response just seems to be variable. With Bix, he seems to randomly need more or less insulin on some days. Since his pancreas is partly in the game (which presumably Squamee's is too, with such a low dose) that could be some of it, or I think there may be health factors as well - higher #s if he isn't feeling well is my suspicion.
I wouldn't worry too much about any one cycle, especially since she's only been on the insulin a few days, there could be some wonkiness that will shake itself out in a few days, who knows.
Hope she is acting more normal by now!!!!