New to kappa light chain testing

Hi! I am new to this free light chain results as I had blood work done last August by a hematologist. I had high Kappa free light chain of 26.0 but the other two tests lambda and ratio were normal. The hematologist said my tests that she tested me for were normal. After experiencing some health issues lately I did my own research and discovered my light chain results myself as my red blood count stays somewhat low. I informed my PCP of my find and she referred me to a cancer specialist. On his first findings my Kappa light chain has gone down to 22.2 and the other two tests were normal. I'm new at this and am scared to death that it could be Cancer etc. Can anyone that has had experience with this inform me a little more. I do have another appointment scheduled with my Cancer doctor. I haven't been diagnosed with anything yet but am so scared of a cancer diagnosis..