what the heck made you flush a plant for 10 day for? A true flush is meant to be 3x your pot size i.e. 3 gallon container, you use 9 gallons of water, spreading the 9 gallons out to say 3 gallons every 10-15 minutes. there is zero reason for you to be soaking a plant for 10 days straight.
If you are what some call flushing just prior to harvest, then you should be doing nothing than regular watering with strictly ph'd water.
What you have is a water bogged plant... STOP!!! Do not water that plant now till the top is nice and dry and even then stick your finger in the dirt about an inch and make sure its dry there also.