We have discussed all Milos health problems in detail especially the anemia side and the way he went pale possible anemia again over christmas and again Monday.
Vet has come up with a few possiblities so today he has had more blood tests to check his blood cells for any sign of anemia again (although he has been good colour since Monday) Also taken blood to test him for autoimmune disease.
If these come back clear (she will hopefully ring me on monday with results) then he is to have an ECG as another possibility is his heart. It all sounds fine with the stethascope but she said if it intermittantly done something or other (sorry can't remember what) it would draw the blood away from the outer body to supply the vital organs causing him to go very pale and look anemic.
We will I am determined get to the bottom of it somehow as he is only just coming up 4years this month so I want him to have many more happy and healthy years ahead of him and not be so up and down.
I will update with the results when i get them so watch this space!

I do hope you find out whats wrong with him- makes it so hard cause they can't talk .....

Best of luck :-)