curling up

Hey guys, overnight some leaves have decided to do some massive twisting and some are pointed straight up. I am not 100% sure about what problem is causing this. The dark spots and curling seems indicative of a phos def. However I've also read nutrient lock outs/burns can cause twisting leaves...

Hello, I couldn't find a sub forum for posting about diagnosis so if I posted this in the wrong location please forgive me. This girl is five weeks into a 12 week flowery cycle, in the last few days Her leaves had started turning yellow and now they are curling up. I did some research online...