Small number of return files

I have been having troubles with the number of hits I get on a search for the past few weeks. For example, in September a search on the image dsc00001 may yield a couple of hundred now it returns 3 to 6. The connection is strong but I have noticed something unusual. When looking at incoming searches I see the same ones over and over. Divera, COVM, May, june, and 2007. I get the message that I will see little to no results since Iam behind an ultrapeer. The results above make up 99.9% of all incoming searches. I have been tearing my hair out trying to figue out the problem. I think my ISP is involved but they assure me there is no throttling going on.