Got my blood results back last week but it indicates high c reactive protein and low b12. My ferritin was also over. I also have problems, pain with my back and hip. I was born with dislocated hips, they used to just bind them up back then until they were no longer causing a problem. I had SPD in all three of my pregnancies (its when the gaps in your joints become too wide due to pregnancy hormoanes) and the third was the worst was on crutches. My left hip still clicks today and my leg right down to the ankle and at times it puts all my pelvis and back out of place. Could this be the reason for the high c reactive protein? I have been to my GP many times and just seem to get fobbed off about it. They have said to 're test in 3 months to see if the c reactive protein is still high. The range was up to 50 and mine was at 56. It indicates this can be high with some sort of infection or inflamation in the body and this is the most obvious thing as it causes me the most pain on a daily basis. From what I have read high c reactive protein can be caused by a vast array of different things.