Spam from MY facebook account

I just saw 89 spam comments on a site I run called socialnetwork.com.au - if you check the activity stream http://socialnetwork.com.au/activity/ you see they are "from" my Facebook login account (I have Facebook Connect setup for Laurel Papworth but it's not my main account). I can't Mark myself as Spam -what else can I do?. I don't think my Facebook account has been hacked by the way, but I am concerned.

I did a search but didn't see this problem elsewhere :slight_frown: I'll leave the activity stream up for a few days then manually start deleting :slight_frown: