Help urgent! bearded dragon violent spasm?

my bearded dragon was climbing on her net and when i fetched her off she had this extremely violent spasm, her tail and body was writhing she tried to walk but couldnt. she seemed to poo out this read baloon like thing, it may have been normal poo covered in blood but it really didnt look it, it had a hexagonal pattern on it. after her fit she lay there almost dead but after a few more minuted she seemed to be okay except the odd droopy eye. the thing is the red thing went back inside her what shall i do? what is it?