The thing with narcotic pain pills, they give a feeling of euphoria. And tylenol 3 will make you have headaches if you miss a dose, especially after taking then for few days. Usually prescribed for things like pulled teeth and usually need them for atleast 2 or 3 days sometimes, and then you get headache by not takin them.

As far as acetametaphin goes--i dont know. I know it stops the reaction to pain in the pain receptors. I dont know if it helps stress, but pain will cause stress to triple---

Acetaminophen is only used ot reduce pain and fever, not stress.