As far as telling your parents is concerned,(which by the way is your main question) just tell them via phone. They'll have a heart attack anyways. At least you wont see their pain with your own eyes. You'll just hear it. I guess thats better. I'm not being cynical. And as far as your parents health is concerned, I guess you wont have to worry about it. There's your rights to your life, then there's your obligations to those who gave you the right to to enjoy those rights. Choose wisely. ;=)