I am facing Spam Mails From my Own Mail ID

Regarding spam mails this seems to originate from your local system than from the server. It is well known issue that if systems connected in internet is not protected, will start sending mails to all the mails in their address book. These mails originate and travel from your local system than from the server.

Please download the message. Right click on the message and view the message source, it will give you the originating IP. That system is infected or vulnerable or insecure.