I have a few questions. My c reactive protein is extremely high, in the 20s, and I get hives. I've been tested for cancer, autoimmune diseases, infections, viruses and everything has came back negative. All my blood work is normal. I've had echocardiograms, my arteries looked at, ultrasounds and xrays of my heart. I am healthy. There was no blockage or inflammation. Does anyone have any idea what else could be causing such a high C reactive Protein? It's stressful in its self cause doctors and allergist are telling me I'm healthy and nothing is wrong but my c reactive protein and hives say otherwise. Any insight would be great!