Why Am I Getting Messages Saying I'm Not Sharing My Files

Hi

I keep getting sent messages saying that I am not sharing my music. However there are files being uploaded by members at the time these messages come through.

I have checked my setting and on the port checks they show open and I have also made sure that the ports are authorized within my fire wall and allowed access to all user's.

Any help would be appreciated as I have over 16,000 files that i have set up for sharing and I don't want to be building up a reputation as a leech.