Are you also just giving it bloom nutrients, with Low Nitrogen?? If so thats a mistake. Weed needs ever increasing amounts of everything from seedling-2 weeks before harvest.
All Nitrogen is to a plant is protein. Humans eat protein, and we turn it into Nitrogen. It makes no sense to limit protein when the plant will grow more than it ever has in its life after flip to flower. Youre asking the plant to stretch, create stigmas, THC glands, and hormones, all with no Protein, is asking to much, and for trouble.
Protein means of first importance. Cell division, and all kinds of shit rely on protein. Immune system. Protein is responsible for almost every cellular process.
Protein comes from the Greek word proteios, meaning
"primary" or "holding the first place." A Dutch chemist Gerard Johann
Mulder, coined the word protein in 1838. Amino Acids Proteins are made from chains of amino acids
Plant for sure looks dry. Beware of letting it get so dry. You will concentrate the dissolved solids, and when rehydrated you risk burning the plant. You will have double trouble if its also fed and watered after it has been so dry.