I have some very healthy pups and some not so healthy. I won't name my healthy ones for fear they might come up with some obscure thing.
My recent event with Teddy Bear who has always been healthy really freaked me out. Not to mention Olivia and Cookie who were also healthy and then one day, bang! You simply never know. We do have a breed that is prone to many health issues and I encourage everyone to purchase insurance if you don't have a means to pay for expensive vetting. You really just never know. It is no different than people. A person can be as healthy as can be and then one day...bang. something shows up.
Sometimes on a forum like this it is easy to start thinking all yorkies are ill because many come here looking for advice about medical issues, but that is not the case. One look at the pictures and videos that are shared and the gift exchange..and other stuff will show lots of healthy yorkies!