Was told repeatedly, that yellowing leaves at bottom was most likely,, due to CalMag deficiency. I began increasing both immediately. Unfortunately, it started spreading, beginning at older fan leaves at the bottom.
Then it was pointed out, that Calcium deficiency usually starts in newer leaves. They also noticed the foot worth of growth in a week and suggested the problem might be that I'm not feeding enough and she's pulling nutes to feed her flowers.
So now, I am increasing amount of both water and nutes. We will see very soon if I am just fuckin it up more!
P.S. She might be GSC, but she smells like Kiwi fruit/green grapes.