I put six of my pets in the Lakeview Resort five of them say the health is 21/21, 10/10, 10/10, 10/10, 12/12 but i have one that is in the resort and is says 0/106. I tried to train her in health but it just made it 0/107. Do your pets get health when they are in the resort?

No, they just get their hunger + happiness filled. If you want to fill their health, you want to see the Healer

Thank you