Early flowering problems, need help

I am 4 days into flowering and for some reason A LOT of my leaves are looking really bad, like two weeks ago I had to flush my plants system due to nut lockout or w/e but she recovered fine, ans now that I am starting the flowering stage her leaves are starting to look terrible, they all have drying edges and others have extreme dead spots in the middle of the leaves, I have no idea what is wrong with her and nothing is working to fix her, she's under two 45 watt 7600 lumen cfl bulbs, she's been growing great under them for the past two months, if someone can help me I would love you forever, thanks

have you feed her?
IMO- it looks like a phosphorus def. in some of the leaves.

I was leaning towards overnutes but your answer made me take another look and I'm not sure on anything. I wonder what kind of grow it is ? Hydro maybe?

I looked in the grow guide and you are right on the money! GG & HY To Ya!!