Well, we finally got his blood results back yesterday. He is severely anemic and he has almost no white blood cells. Still losing weight and appetite is starting to trail off. Today he is going in to get a bone marrow aspirate to test for leukemia. It is either leukemia or IMHA. I already have an animal with IMHA, so we know how to handle it, but GP's are much more fragile. He has to go under anesthesia for ten minutes for this procedure, which I am worried he will not survive because he is weaker, but if it is not done then we will lose him within a week. If it is leukemia then all we can do is try to reverse the anemia and make him comfortable. IMHA is more manageable, but there is still no guarantee that he will respond to the meds or that we will be able to start them in time. He is in for the aspirate now, I will let you guys know how it goes. I was already watching him closely, knowing that as of right now I am going to have to euthanize him very soon if nothing changes. I haven't yet because he is still running around the house, bothering the other animals, and squealing happily. If he loses his energy or his will to fight I will let him go. I am aware that there are environmental factors to IMHA like food, but my animal have been on this food and we have not had this ever happen, nor has anyone else. They have no grain, no soy, and they are overall healthy. My other animal with IMHA (a rabbit) is inbred because his father was a show champion (makes me so mad that people think this is ok) and so he has many many issues. This pig is also inbred, his mother and father came to me from the same place and his mother was already pregnant when I rescued them. Both of his brothers passed from genetic issues (brain aneurism, etc). I am looking for some advice on here about anyone who has heard of this situation in guinea pigs? Lynx, bpatters, anyone?