Dear sir I can understand your concern . .but I would like to inform you that immunodeficiency is a very broad term that comprises many entities . And it s complete work up can be done at experienced clinical centers that are able to perform appropriate molecular and genetic tests . The most common symptoms prompting the diagnosis of immunodeficiency is the presence of recurrent or unusually severe infection . It may be recurrent bacterial viral protozoal or fungal infection . For example infection of respiratory tract mostly suggest defective antibody response. Viral and fungal infection and opportunistic infection is suggestive of T cell deficiency . So to confirm the exact diagnosis we need to take complete history and examination that will include liver spleen and lymph nodes specifically . I would like to suggest you that you may consult a physician and take his advice for that..hope this will help.