Interesting! Would consistent low light cause it to change so suddenly? I haven't changed it's location for months, it's ~10 feet away from a west-facing window and has honestly seemed content up until this change the past few days.
There are drainage holes in the pot, when I water it water flows out the bottom (I watered it 4-5 days ago so the soil is still damp right now in the photo). I repotted it about a year ago when I got it and honestly just used generic potting mix, nothing specific