foxtailing can happen for various reasons -- heat or light or ??? maybe, if it's in bloom too long some start popping more pistils.
it's odd that it looks like the leaf is new growth too. I've seen spirals form, but never new leaves with it. -- basing it on color of those leaves as if they are recent.
the plant may not be able to photosynthesize much with all that canopy damage. if the trichomes are anywhere near ripe, i'd second the harvest sooner than later suggestion.
rhetorical question: has the smell changed at all lately? if so and in a bad way, it may be dying on the plant. Another indicator is if it suddenly stopped drinking... extra long between irrigations?