if you have elevated inflammatory factors, it could impact you in a lot of ways. if you've had previous injuries, they may flare up, or you may get systemic joint pain, depending on how high the levels are

as a matter of course, given you have had no injury recently and you're feeling worsening pain in your joints, i would think the GP should re-test your bloods to compare and see if anything has changed. make sure to mention the hand pain and borderline results to your GP so that he knows this isn't a new and isolated "injury"