Is idiopathic lymphocytosis a thing? I have had lymphocytosis for >1.5yr, (prev doc never said anything) but no determinable cause. Also have anemia

Ideopathic=Basis not. understood. Lymphocytosis: vague term for ?ed concentration of lymphocytes (5 major types) in peripheral blood count than considered usual. If a colony of lymphocytes in bone marrow are reproducing fast & crowding out RBC reproduction, this could be one basis for the anemia. If severe enough this is called leukemia; many different seventies. Many Docs don't mention what they don't understand.