Thank you for your reply.
If he did have a tumour, wouldn't this show an abnormality in his blood test results?
Yes, his red cell count has now stabilized at an acceptable level following the transfusion 1 week ago &, apart from a few episodes of vomiting fresh blood clots prior to this, there has been little evidence of blood loss from elsewhere - his stools have been darker on occasion but certainly not tarry, as you would expect. Irwyn would not eat unless we put tempting foods under his nose on his blanket, where he would lay all day if we didn't encourage him to stand outside at intervals for comfort breaks. We are giving all the medication as prescribed but the vets here said that they would have expected his condition to have improved by now.
May I also add that he has been vomiting bile every morning on waking for the past 18months, but has appeared very happy & healthy otherwise.
Basically, i am wondering whether he should appear better by now, or could this take more time, making his general malaise acceptable under the circumstances?
I agree with the previous comments made by the other experts. Medications are only to relieve systoms, blood transfusions only replenish blood cells temporarily, but what they are all doing is called symptomatic treatment, it is temporary. Once the underlying condition is found and treated all the symptoms such as ulcerations, anemia, nausea would improve in time. I think the first and best thing to do is discuss the availability of an edoscopy at your veterinarian's office. It would provide better understanding of his stomach problem and the first step towards finding the underlying disease. Let me know if this was helpful.