I took Pearl back to my vet this morning at 10am. She gave her a vitamin B-12 shot and also told me to start giving her Metamucil and Forti Flora for the next 7 days. I took in another stool sample and it's normal so the antibiotics that she had been on must have taken her good bacteria away from her in her intestinal area and then it became irritated which caused her to have blood in her stool. She said it's a form of colitis that will go away when her good bacteria is restored. I just wish that we had tried the Metamucil and Forti Flora after I took her in on Wed. instead of trying the Peptobismol thing first because then she'd probably be almost back to normal by now. I'll let you know how it goes.