One thing I've noticed with my fuzz butts is that the earlier I feed them the earlier they wake up, or if I alter their feeding schedule to feed them later in the day they sleep later.
As for her being allergic to the HPW Complete it is possible, I've known people who have dogs that are allergic to grass, people with cats allergic to certain types of food. I wouldn't rule it out, maybe talk to your vet and see what (s)he thinks?