Annie,
I am so sorry. I suspect just about everyone on this board has had to say goodbye to a pet at one time in their lives (or more), so this sadness is something we all can relate to. It's very tough, and nothing makes it easier but time.
Again, my sympathies.
Emily, who has a beloved 14-year Boston Terrier and is already dreading the inevitable day....
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow