Oh, your plant in flowering should handle 100% no problems and a 2-2-2 grow formula is barely strong enough for proper growth, something like 5-2-5 would be better suited. Saying your plant is happier is no doubt due to her metabolism slowing due to the reduced light intensity, which will actually slow growth somewhat. Increasing her nitrogen intake will really make her happier and don't forget to use a product with trace elements. For a real boost to her health, try finding a product with humic, fulvic or amino acids, or all three for a dramatic boost in vitality.
Cheers, Organoman.