so my guinea pig was on my back and it jumped off backwards... Well now it is not being normal it won’t stand up and it won’t lift its head... it’s just laying there. it was on my floor and it was super stiff now that he is in is cage is he just like trying to move but he can’t.... Does anyone have Ideas . He is very squirmy . I was sitting on my bed and he jumped off my shoulders at first he was just limping and barely moving . Now he is very stiff.