In my Opinion you have been high in feeding during the whole grow. And that what the Plant shows now. But its no Problem at all because you are so close to harvest.
My recommondation would be, to invest in a bigger light// more quality light. Your Plant showed it, she was growing very big, and the Flowerdevelopment went slow. So if you get a bigger light, dont have to feed so much and all your effort pays off.. bigger buds and much easier grow. Plant stays smaller and build bigger flowers
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