Happy birthday, if belatedly (I haven't been online much the last few weeks and I'm trying to catch up). Your posts are always a pleasure to read, even though I'm not very good at remembering to comment, and I'm very glad that you decided to join LJ and Buffy fandom :) *hugs*

(As for the notifications not working, have you tried searching for your username? That might uncover more mentions that you've missed)