Someone in my community has been discussing me since feb 08 with others in the community, he has rang my house

numerous times, verbally abused me in public, told people i have had a nervous breakdown etc and is still slandering my name in public, what can i do to put a top to this?. i am totally stressed out about this and it is affecting my relationship with my husband. i am going to see my doctor tomorrow because i am so stressed out.