Hello, I'm Fifty Six And Was In A Car Accident

Hello, I'm fifty six and was in a car accident three years ago and have had problems with pain behind my eye, back etc. My question concerns my blood tests. My doctor tests my Reative Protein Sensitivity. Apparently it's supposed to be lower than 5 and my results over the last few years average around 11. Please can you tell me what this means and what I should be doing? Thanks