Thanks for posting your query.
Higher RDW means large variations in Reed blood cells size which may be due to liver disease, hemolytic anemia
or deficiency of Vitamin B12 and folic acid. As far as C-reactive protein
is concerned it is a protein which is released in higher amount when you are having any infection, inflammation or any autoimmune disease
but your C-reactive proteins are within normal ranges.
You should get other tests like LFT, hemoglobin electrophoresis
and MRI/CT scan.
Hope it helps.