My dog is a golden retriever and she‘s really big. Heavy and just big in general. Today, I went to give her food and she didn‘t come out. Turns out, whenever she tried 2 get up/ stand up, she limps. She won‘t out any pressure whatsoever on her back right foot. I know this happened overnight cuz my family member said she was fine early in the morning when he woke up. There‘s nothing in her paw and I‘ve given her arnica and tried massaging her foot. She hasn‘t gotten up since this morning and it‘s making me nervous. She doesn‘t move away or flinch when u touch her leg tho. I dunno what‘s wrong. We tried putting a towel under her belly and lifting her up with the towel so there‘s no pressure on her back leg but she can‘t decide where she wants to go. I brang in the food 2 her so she‘s eaten. I‘m trying 2 figure out how I could even get her into the car 2 take her 2 a doctor. She literally won‘t take more than 2 steps even with my help. And she‘s big so it‘s NOT easy 2 lift her up. What do I do?????