You are put into the body of a dog, you have very limited higher functioning, but you are happier

Granted. But you’re never allowed to feel pain, frustration, sadness ever again. A loved one dies and you can’t grieve. You’re taken advantage of in your job because you never set limits. You overwork, and your body starts to fall apart because you never feel the need to exercise or eat right. You get a disease but never try to fix it because you’re happy with it. You die a sad early death with a smile on your face.