I'm going to mark this as fixed as there hasn't been any new reports since forever and testing my game, it seems fine.
If anyone still has it, please post.
I don't know if this is related, but something with the wellness treat I've noticed is when you give it to a pet when they are sick, it causes problems.
I had given a wellness treat to all my sim's animals (1 dog and 4 cats) when they all were healthy (right after a preventive shot) and all of them were fine. However, I then gave the wellness treat to a sick stray (because I couldn't cure them) and to my sim's own sick dog (because she doesn't have a lot of money and bills were due.) After giving them the treat, the symptoms of the illness went away, but then they started fainting. My sim's dog is also now afraid of something along with fainting constantly. At first thought the fainting was over exhaustion but now I'm not sure after reading these comments.
My dog was not sick and was in a happy mood. My dog was at the home lot. When my sim came home from the vetclinic, where she works as a vet she gave the dog a wellness treat. Right after she gave this i noticed that the dog had this affraid of something moodlett and it stayed that way no matter what i did. After searching for a solution i tried the remove all buffs cheat and that seemed to help. So i do not think it is related to anything like sickness, but the wellness treat it self is causing the issue.
For anyone who wants to know, Misslittlesam has made a bugfix that you can use or use the remove all buffs cheat for it until it gets solved.
OH no! I'm so sorry, i did it again. It's littlemisssam.
