Hey,
Do you got some runoff numbers?ph ec? And what kind of nutrients and medium you’re using?
I had one with identical problems a few years back all because of e serious ph problem
She is definitely struggling,leaf’s yellowing at the bottom due to a nitrogen lockout,not because she finishing
Purple stems all over her,probably due to phosphorus lockout ( mine had similar stems like yours)
Small bud sites because she can’t take in any potassium
I was using coco back then,I flushed her out,I used the same liters of water like her potsize,like 20 l over about 1,5-2 hours and eventually she rebounded but it was a normal feminized lady,not an auto so I ran her little longer on 18/6 for a few weeks extra veg.
So she still yielded properly