Seizure,severe Pain In Sternum,painful Cough,X-ray
Thanks for posting your query. Chances of a fracture are there if CPR was done with force but it can be as simple as a cracked rib also.
There is no specific treatment for rib fractures but supportive treatment helps. I suggest you to apply cold compresses and take some like Ibuprofen after prescription from your doctor.
Give complete rest to the part and avoid doing any activity or exercise which aggravates the symptoms. In the past, it was common to tape or tightly wrap the injured rib area but it could cause parts of your lung to collapse or could increase your risk for pneumonia. Hence it should be avoided.
To confirm the diagnosis, best would be to get an x-ray (to rule out fractures) and a MRI scan (to confirm good health.
Regards.