Hi, it looks like a nutrient lockout to me. I would measure the pH of your runoff (the water that comes out of the pot); if it’s not between 5.8 and 6.5, you need to flush the plant with water. And for sure, you need to fertilize less. Are you giving her nutrients with every watering? I had this happen with the membrane I still have in the tent. First, it was over-fertilization, and then my pH dropped below 4.7, and because of that, she stopped taking up nutrients and slowly burned. You can still react and save her. Good luck!