I've had a site active for about six months that I had told Goog webmasters that it was a domain name change of another site I had for a year. In the Links to Your Site, I would see the links from other sites and, for a time, links from the old site to the new one. But since just a couple days ago, the report is showing no data. WTF?!? Should I be worried? Does this happen sometimes and resolve itself on its own or should I be doing something about this?