Sometimes the damage won't show for a few weeks, and that's usually because the plant will start to develop salt crystals around the roots and will prevent the roots from properly intaking the food it needs. The best method is to give your plant 1/8-1/4 strength nutes, and the next 1/4-1/2 and so on all the way to full dosage if it needs it, sometimes they like more. I would hold off on feeding it again untill you water a few times...and i would defenetly flush the plants asap, trust me, your going to end up wondering what's goig on....and more times then not a person will mess everything up by giving it MORE food...when it's clearly not the case.
I have grown a few strains where i have only givin the plant 1 feeding in veg and 1 feeding in bloom cause that's all it needed.
Just wondering if you got my last post about your lights. I reccomended you get more cfl's...you need at least 4 per plant to grow any decent sized buds...remember that the bud will loose up to 70% of it's size when drying...i've seen some happy growers bragging about there cfl buds, and then crying when there dry!
