Pk deficience? Or tox?? Help me plz tenders....^^

Nutrient excesses imo. Esp nitro things, lay off, and generally lower your nutrient levels a bit (though keep it biased to flower nutes). Like, that is not a huge plant, right. And I dunno what sort of directions they give with nutes, but you should kinda scale it relative to the plant size and soil amount.

Looks like you got a bit of nute burn and your leaves are going dark probably because of N levels. Your using more grow then bloom, you might want to even them out and then slowly increase bloom while lowering grow.

Did you add any cal mag?