Thanks Kansan for your interest. I had her for 14 years. She was an energetic lovey dovey brown Labrador. Like most dogs, she was loyal and always there for me, so she was part of the family and part of me.
What made it even harder is I'm away from home (I was a grad student here). In the past 3 summers, I did return home but not the recent one as I was looking for a job here. A few weeks ago, I did think of returning home for a short holiday but her death came on pretty suddenly.
She was put to sleep after 5 days of suffering (kidney failure and enlarged heart). The touching moment was when my family members visited her as she was lying there on drips in the animal hospital, very weak, breathing hard and loud, eyes half open. They called her name and said the final farewell and she flickered her eyes a little. When the lethal injection was administered, it was instant death.
A few years ago, I watched the movie 'Marley & Me' and yes, that movie made me cry. I knew then that the dreaded day would come since we humans outlive our pets.