@Aquabuds, My best guess would be a magnesium deficiency. You might try misting with an Epsom salt solution for now. There are several possible causes. One of those is when the soil pH is too low. Alas, I am no expert. It would be best to research this online for yourself. I hope I have given you some sense of direction.
Looks like she had a great week. Lots on new growth comparing dayy22 and 28. Amazing work. Looks happy and healthy. Keep doing what your doing and best of luck the rest of the way.
Looking good ... Just got done harvesting a Northern Lights Auto and a AK-49 Auto myself. Got about 63 grams off my Northern Lights ,check it out if you can ! I wish you the same success. Good luck with the rest of your grow.