Feed Stopped Updating; Here's what I've tried, what am I missing?

[Diane Gilleland]

Greetings - maybe someone here can help me.

My feed for http://www.gingerbreadsnowflakes.com stopped updating sometime between Jan 24 and yesterday. I've tried these fixes:

- Put the Feedburner and source feeds through FeedValidator. Both come back as valid, but the source feed has this message as well: "Missing atom:link with rel="self"

- I did put up a blog post yesterday that had been copied out of a Blogger blog and pasted into my Drupal platform. I've had bad characters break my feed before, so I deleted this post, but the feed didn't start back up.

- I checked the feed size; only 67.47 K.

- I pinged and resynced the Feedburner feed after each change; nothing happens.

I don't know where else to troubleshoot from here. Any suggestions anyone has would be so appreciated!