We brought home a beagle pup one week ago. We took her to the vet because she could not deficate. When she finally did, the vet confirmed she had coccidiosis. She was also dehyrated and gave her a shot of saline to help and sent us home with meds to treat the parasite. After forcing the med, now the beagle wont' stop screaming and whining. She has been crying for hours, and will not stop. She also will not eat or drink. It's Friday night and our vet is closed for the weekend. Why won't she stop crying?