No job is worth sacrificing your health for. You could either talk to the boss and see if there is any lighter duty you could do, or look for another job.
Listen to your body and QUIT!!! No job is worth your health!!! If you are old enough to retire do so. Get happy and the body will repair itself.
I agree with Mike. I finally realized the toll my job is taking on me. It's time for a change. I have stayed for insurance purposes but the fact is I probably wouldn't have the health problems I have if I didn't work there. Stress is a serious health risk!
Have sex with a umpa lumpa. That fixes everything.
fake an accident and go on the sick