Sometime this afternoon I started getting Failure to Deliver messages from Gmail.

Sometime this afternoon I started getting Failure to Deliver messages from Gmail. 

I looked, and all the messages are one liners, usually a link, and all coming from me, to people I rarely, if ever, email. 

For example:
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From: Jason ON
To: [redacted list of emails]
Cc: 
Date: Wed, 14 Nov 2012 13:04:02 -0800
Subject: 
  http://www.fastpaidloan.com/wp-content/plugins/akismet/google235.html
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I changed my password as soon as I noticed this, but now I have to wonder ... how? I've only been on G+ all morning with clicks through to articles of trusted sites.

Do I report this as spam even though I (technically) sent it? It's not phishing and I don't see any "report my account was cloned" options.

Anywho, if you received an email from me, I apologize.
http://www.fastpaidloan.com/wp-content/plugins/akismet/google235.html