See if you can get a copy of the blood & urine results & post the numbers that are not in normal range with the reference range, that will help me to give you an indication of what is going on.
An ultrasound would be a good idea to have a clear picture of what is happening in CJ's abdomin, not just the pancreas but also see how the kidneys, bladder & intestines look.
Is CJ only on dry food or do you feed canned also? Have you noticed any particular brand/flavour that makes him vomit more than others?
Avoid biting when a simple growl will do
The Spirit Lives As Long As Someone Who Lives Remembers You - Navaho Saying
Vindication ~ For all those pets who became sick or lost their lives from tainted pet food