Advice on pain!!!

Saturday afternoon I started having pain in my ribs on the left side. The pain goes all the way around to my ribs in my upper back. It hurts to breathe, especially when I exhale. I called my doctor and had to talk to the nurse and she told me to drink some milk of magnesia even though I told her it wasn't gas pain. Then she called back and told me to go to a chiropractor since my back hurts. But it's my ribs, not my back. I'm not really sure what to do...any advice would be greatly appreciated!