What to do?

[Gr33n_Cr0nIc]

So my baby is like 2 weeks away from being cut down but just 3 or 4 days ago i ran into some problems....

What im using:
FluraNova Bloom, Advanced Nute BIG BUD and OVERDRIVE.
5 Gallon Bubble bucket with 3" air stone
400 watt Hortilux super HPS

So the prob is alot of my leaves are gettin yellow spots (small ones everywhere on the leaves) and then drying up and dying. Now i know that the bigger leaves are gunna turn yellow due to lack of nitrogen this late into flower but this isnt like the yellowing i have seen on past grows. They get yellow spots one day then the next they are dying from the tips inward...

ANYONE got a clue as to what to do? Or u think i should let her suffer for 2 weeks? thats just mean...