What are you feeding her? Could be allergies to the food….
I was just going to suggest this. It could be allergies to food or anything else.
Fish oil will still help even if it's allergy related (along with changing the food if it is a food allergy). I give Kananga Benadryl every now and then when he's frustrated. Calms him down and he doesn't seem to be as affected anymore. But his allergies are beyond food related. I'm already using a 100% grain free food.