I'm not really sure how someone could know this plant has gone from flower to veg to flower - your diary doesn't give this information! If she's a photoperiod, yes you're giving her too much light... cut it back to only 12 hours of light and 12 hours of complete darkness.... and don't change that. You should also try to take photos in normal light so we can at least see the natural coloring of her leaves - that would give us additional information about what's going on with her. .. as well as a picture of the entire plant!
At this point in her life, she'll be wanting a lot of PK so try to get that into her feed as well... and cut back on any nitrogen you're giving her...
Good luck!