Dark shiny leaves and extra foliage, usually with clawed tips would indicate nitrogen toxicity.
just back off on feeding her for a while, you can foliar feed for a bit while youre still in veg, try to stay away from anything high in N cal mag will probably have enough for a while. it will clear up given enough time, i accidentally gave one plant N toxicity about a week into stretch last go around. The bud was still plenty potent and my yield was a lot closer to the other two plants than i anticipated, lots more popcorn and a pain in the ass to trim though.
what medium are you growing in? if youre using big box store soil slow release N fertilizer in the soil can cause this problem for a lot of people. also if your soil has wood chunks in it remove any of them larger than very small twigs. when wood decomposes it releases a ton of N.