curling top leaves

just switched to flowering 4 or 5 days ago, started to add the other nutrients its botanicare pure blend (pro bloom) 1-4-5. just wondering if this is the problem?

here are some pictures, if you cant tell on the first one, in the upper corner of the picture the leaf is sagging a bit. on the second the leaf is twisting.

Several things could cause the leaves to curl. I would think its either too hot or it doesent like what ur feeding it.

humidity too low? should be about 50%

i agree thats its either humidity or heat...but there not that bad...ur fine...just try to keep ur humidity(veg55-65%flower40%) and temp(65-75degrees always) in check