@bronte I wonder if you bruised a rib when you took that tumble? With a pronouncement of pain on deep breath, there is added strain to rib/diaphragm area on that intake of air. Perhaps a strain of the shoulder. Is it on the same side you landed on with the fall? If the pain is not subsiding, perhaps you can plead your case to the medical office and be seen earlier. I'm certain neither you or they would want a condition to exacerbate due to their not being able to fit you in. That could be grounds for some unfavorable action!
Ginger