I figured out why my leaves were drooping- the roots were drying out.
Upon hearing the suggestions made in this thread I didn't water for an extra day or so (even though the cup was very light after three days) and the drooping got much worse. I watered in fairly well with some improvement, and after three days it was light again. I decided to transplant to a 1gal fabric pot, and when I did I found the medium was indeed completely dry and the root system was at the bottom of the cup, root bound and drying out at the drainage holes.
It's only been two days since the transplant, and she already looks much better! I started a journal in the appropriate forum if you're interested in following along.
Sorry for the potato quality, I'll fix that for any future uploads.
it's the opposite of what you're thinking. don't let the plant fool you
drooping from ONLY the the leaf, not the stem going up to the leaf is from over watering, in this case you have.
drooping WITH the stem going up to the leaf is that your pot is dry.
when i was in soil how i thought the best way to water your plants was to let your soil completely dry to where the leaves look underwatered (stem drooping with leaf) then give them a heavy watering, and i'd be good for a week or so. this encourages the roots to look for wet soil once the soil starts to dry out, creating amazing root development.
careful when youre doing this, don't mistake one type of drooping for another.
that drooping that you still have is from OVER watering, since the ONLY leaf matter is drooping.
sorry if i'm repeating it alot, it's just a common misconception that's really hard for people to understand sometimes.