I have a 15-year-old female llama who has been down (cushing) since last night. She is still eating, drinking, pooping and peeing. When we stand her up, she can stand (weakly) but then wants to go back down. We have tried worming her and giving her supplements. Her temperature is normal. It is not very likely that she ate something foreign. Any suggestions regarding what to do to get her up and going again? Thanks!