why are my leaves doing this? PICS

so im growing 2 blue dream clones they have been flowering for 4 weeks, for the past week or so the leaves have been doing this wierd thing and i was wondering if anybody could help me diagnose the problem...

the problem came after the first dose of PH adjusted Tiger bloom. I think that maybe the PH UP didnt sit long enough and raised another half point or so after i watered. because my runoff PH is at 7.0 and i water with 6.5 PH. . Any help is appreciated, and +REP. Thanks ahead everybody. The leaves in the pics are cupping downward, and the tips are bending downwards. Heres some pics.

Cut back on the nutes some.

possible heat stress!
what are your temps at the top of your plants?

i Flushed a couple days ago because i thought it might be too much nutes... The temps about 3 -4 inches above canopy are at 80 tops


Thank you both