Chocolate mint og

So generally at the begening of flowering you don't low the nutrients dosage but you increased it because the plants needs are more important during the 2 first weeks of flowering.
Take a look at my coco grow , my ph is always 5.8 ( it is the sweet spot in coco ) and my last feeding Ec was 2.45 without harming the plants so you can use an higher dosage than what you think as long as you control your water runoff Ec and Ph

Defoliation shouldn't make it to where you need to correct your nutrition. I think the stress your seeing is coming from your ph being kinda low. Try bringing it up between 6.0-6.5 this should correct the problem.