Sorry I didnt see this question sooner and I hope by now the dog is ok. If not you need to take her back to the vet, she could be having a side effect from the medicine the dr gave her
My Irish Wolfhound Is Being Treated For Diarrhea With Endosorb And An Antibiotic Metronidazole 250 Mg Tid. She Is Well Hydrated And Her Stools Are Almost Normal. For The Past 6 Hours She Has Paced Continually On Laying Down For 30 Seconds At A Time?