Its from your soil, dont stress it, i promess you she will make it to the end and everything will turn out alright, just go easy on the nutes, you already know this info from what i've seen in your diary.
Just play it cool, and trust me on this one.
Btw, if youd like you can pick an answer to support any grower as grow question answers give points to the selected answer, i'm running on this run aswell, hope you pick some grower round here 😁🙄