I know what you mean! You can't describe the feeling. Once I had a horrible scare with Nena. She pooped blood!!

I was so scared!! We rushed to the vet but thank goodness it wasn't that bad. She prescribed some medicine and Nena got better
You can also see it this way. You now go to a great doctor that has experience with small dogs and knows what she is doing.
You are investing a bit more now on their health for them to be healthy and them being healthy means less trips to the vet