I am so glad to hear you got so much comfort and support here and that your baby Trinity is doing much better! YAY! Im sorry I was not one of those who posted on your original thread. I have no experience with pancreatitis.
I can tell you, I had a yorkie boy a little over 3 years ago. He was with me all the time. Outside I watched him like a hawk, inside my house was puppy proof. Well one day he got sick and I rushed him to the emergency vet and sadly he didnt make it. They did an necropsy and found out he died from ingesting rat poison. I had no idea and still no idea to this day where he could have gotten into rat poison.
I guess my point is, no matter how much we watch them there may be a time they do something or eat something we just don't see. Its not your fault and it says nothing about the cleanliness of your house or your attention level to your baby. I am sooo glad that Trinity is doing better and you are one GREAT yorkie daddy!