You may just want to start over honestly ......and it doesn't matter what size pot your in as long as your nutrient dilution is correct it could be in whatever size pot .....so if your dilution of nutrients was to strong it would have done the same thing to a plant in a large pot .....also for future don't transplant when in flower it's a bad idea .....and figure out what you did wrong because pot size has nothing to do with nite burn ......good luck
Did you try watering her with just water for a few days? She might flush but maybe not.Yes I think I hit her with my big girls nute solution. Her clone actually I will give her a few days see what happens.