Thank you for your query at DoctorSpring.com
I understand your concern.
Since when have you developed these symptoms? CRP is an inflammatory marker and since it is elevated it points more towards arthritis. As arthritis has been ruled out, we need to evaluate further to find out the exact cause. It could be due to a vitamin b12 deficiency or a pinched nerve.
Did you get your CBC evaluated?
Now regarding the finger joints : Is the pain more in the morning after waking up? Does movements aggravate the pain? Is it in both hands or on one particular side?
Kindly answer these questions and I will get back to you,