Very elevated c-reative protein?

the paper said up to 7 mg/L and mine was 22 mg/L..the doctor called me in and told me i had some immflamation in my back.. yea..i do...i had to quit my job because i am physically incapable of the tasks...unless i sit on my *** for a few days up to the day i need to do something, than i am screwed. the more i move..the more pain and less mobility i have. i am being tested for the HLA-B27 gene ..havent got the results back yet. .the doctor i saw did x rays and he looked at them and said he thought i had a bit of sacroilititis...or spondyi or what ever...but when i got the x ray results back...it said the discs are maintained and the joint spaces and sacro-iliac joints are maintained..no erosion or degenerative change is seen. any ideas? someone tried telling me i have lower mechanical back pain....i seriously think there is something else wrong....i cant bend over to pick something up...ive heard crp can elevate if ur fat too..and i am overweight...i have seen a chiropractor too