well it is starting to get colder here (im in nc) but the plant sits inside one bucket, thats suspended over another bucket which then sits inside of a rubber maid container on a carpeted floor, and i rarely let my ambient room temp drop below 70. So i doubt its temps, but ill keep an eye on it anyways would much rather catch a potential problem before it gets worse.

Ive done the whole pH dance before so now i make sure t hat EVERYTHING that goes into that pot is pH balanced. The water that i flushed with was pH'd at around 6.6-6.9, my pen is a bit whiney sometimes, so i checked with an aquarium pH check chem kit and it gave roughly the same results.

Im fairly sure its probably any one of a combination of either.
Overfert
or Over doing the bug spray (im impatiently waiting for my neem oil).