Here it is in simple terms.. When a plant starts to flower it is using more energy and more food in order to reproduce. Now with flowering foods they are usually lower in N, thus when the plant is trying to produce buds and new leaves that surround the buds they are using lots of nitrogen which flowering foods don't have alot of.. Get her fed some veg food and she will be fine. Feed a couple time with it because 1 feeding isn't gonna be enough