We have a bichon mix we adopted about a year ago. He is a little over a year old and a few month ago started having diarrhea with blood in it. He has been to the vet twice, ran blood, urine and fecal tests and nothing comes up as something that is wrong. Our vet has given us multiple drugs but nothing seems to help. We have changed his diet and ensure he doesn’t get human food but no change with that either. He is having to go out every 3-4 hours even in the middle of the night. Does anyone have any suggestions about what this could be or something we could do to help him?