so one of my guinea pigs is acting really weird, it was itching a few minutes ago and now its darting in random directions and jumping or popcorning (in a bad way). it looks like its trying to shake something off its head/body. honestly it scared me, i thought it was having a heart attack. only one of them is doing it and the house is really quite at the moment too so i dont think anything scared it. it's also the less dominant one thats doing it and the more dominant one sometimes chases it away. however i did pick them from the same pen. i've had these guinea pigs for only 4 days.