In reply to mbh:
I've broken ribs and pulled the muscles between them. They felt the same.
I'm an A&E doc, I deal with this virtually every day.
The chances of you breaking them lifting something is infinitesimally small.
So you have pulled the muscles etc. You should not underestimate muscle pain, it is not a medical fob off.
If you have punctured your lung you would not be sitting typing on UKC!
Tissue damage is not just confined to when you did it. To a certain estent damage will continue as you move/breathe/twist.
The way ahead is to let your body heal; avoid particularly painful manoeuvres, support yourself by taking painkillers to promote healing (ibuprofen etc) and make your life less miserable.
Clearly don't take anything you are allergic to.
I regularly give people this advice and their response is often that they don't want painkillers. There isn't a magic wand here, painkillers will help with the pain. Not taking painkillers will make it unnecessarily unpleasant. Take the pain or take painkillers to help with the pain, there aren't other options.
Good luck mate, I know how painful this is!