leaves curling=an issue?

My Bubba Kush may have an issue, but may not???
The leaves are starting to curl up. It is 33 days into flower with about the same 33 days to go.
It is turning really sticky, and smells to high heaven. Perhaps that's why the leaves are curling up, stickiness?
Is this due to feeding? I grow in an ebb and flow, with 6 other plants on line and only this one shows this.

Thanks for any help...

A pic.

minor temp/moisture stress

Looks damn fine to me!

It's fine.

Is that pre 98 bubba? It looks like the real cut of pre 98, my pre 98 bubba does the same thing and you can find pictures of it ddoing so in one of my journals.

I can't find any of my bubba pics with curled leaves, this is the best one I could find:

It looks like canoeing to me, which isn't a bad thing at all

This is another one that does it even more than bubba, it's orange crush. The frostier it gets the more they curl, same with bubba.