Okay, update:
Upon double checking levels with a dropper, it appears that my nitrite level is at about 0.5 ppm for some unknown reason? I have added salt to the aquarium to hopefully bring it down or help reduce stress. My GH is about 100, KH about 40.
I really don't know what could have caused this. I did a water change friday night, but all fish were fine through saturday afternoon. I always treat with prime. I went up to canada last night, my mom fed them dinner, and this afternoon I come home to this fish acting strangely. I've never heard or read about these symptoms so I'm not even sure how to start treating!