I'm not exactly sure what your question is.
Constant buzzing in the ears is called tinnitus and can be caused by many different things. Neurological disorders, such as multiple sclerosis, can be a cause of non-pulsating tinnitus. Here is a brief overview of tinnitus found on WebMD and here is what I found on HealthCentral regarding tinnitus.
If the information in these sources answer your questions, great!!
If not, please come back let us know more about your question.