What Does It Mean When You Feel Itchy Inside Your Body?

What Does It Mean When You Feel Itchy Inside Your Body? Itching on the whole body might be a symptom of an underlying illness, such as liver disease, kidney disease, anemia, diabetes, thyroid problems, multiple myeloma or lymphoma. Nerve disorders. Examples include multiple sclerosis, pinched nerves and shingles (herpes zoster). Can your insides feel itchy?