Leaves in Bad Shape, Help

Wut up, so I am asking another favor from the RIU community. I went to 311 day in Vegas, and came back to some problems. My girl is about one month into flowering and progressing pretty slowly.

The problem is my leaves start with browning in between the veins and then basically white. Some of my leaves are also droopy and some are folding under, but only on the main cola.

pic 1: two of the worst leaves
pic 2: beginning of the problem
pic 3: overall view
pic 4: shitttty leaves
pic 5: bud shot, droopy leaves, sorry its sideways
Ok, heres my setup...
Rubbermaid
5 CFLs 28 watt each positioned about 2 in. from plant
Two comp fans one intake one exhaust
Plant is in cut up 1 gal. milk carton
Soil is 1/2 peat moss 1/2 MG soil (?)
Nutes that I use is MG Bloom Booster
I water every 3-4 days or until light

I have some guesses as to what the problem is. I believe the browning is a ph fluctuation but i dunno whether too high or low? I have a ph test kit for aquariums thats like 10 yrs old and it says my ph is a perfect 6.5. But i dunno if its accurate since its so old. The leaves are probably droopy because of heat. It gets up to 100 in my rubbermaid. And the leaves folding under might be ph also?

I could be way off on these guesses. I would appreciate any help or suggestions. Thanks for reading this.
Peace & Love.

Well, I can tell you what the most obvious problem is......overfert. Those claw-like leaves and the dark green color are sure signs. Time for a flush, then let them dry out for a few days. Then in 3-5 days, I'd give them straight water for one more time, then go back to feeding, but only at 1/2 of what you were using before. Keep an eye on the new growth, if it's dark green, back off on the fert even more. If it's lighter in color, add a little more. 'Reading your plants' is the best way to tell how they're doing, then go from there.

Also, you should consider coverinmg that pot with something that'll block out the light, or better yet, transplant to a bigger pot. I don't like transplanting in bloom, but in your case, it would definitely be worth it.

Wow, over fert didnt even cross my mind

but i just got back from flushing my bagseed so hopefully she will look better in the next couple days.

Thanks for the good advice jawbrodt and definetly +rep if she starts looking better.

I have mylar on the outside of the milk jug so were good on that and cant transplant because of space...stealth grow.

Anymore suggestions or help is welcome and ill report back in a couple days if my girl is not looking any better.