Nitrogen toxicity

No diary = no information so all you're going to get here are guesses.. You need to start a diary so that when you have questions, we've got all the info!! It may be nitrogen toxicity - it may be something else but what you need to do right now is to flush the plant with 3x the water (PH'd) as the pot size (so if you're growing in a 3 gallon pot, you'd give it 9 gallons of PH'd water. This will "clear the soil" getting rid of all nute and salts build-up and getting it back to square one. If you're growing in soil, the proper PH range is 6.0-6.5. You're going to have to do some research on the proper amount of whatever nutes you're giving her... If this is an auto, they don't like the full amount of nutes... but I would at least cut back on any grow nutes you're giving as those have the most nitrogen in them. Good luck... and start a diary for you and for us!