Mark,
Thank you so much for the valuable information. He is still having terrible headaches but I told my sister to make sure to contact the pain doctors tomorrow and let them know - of course it is a holiday and the place seems to shut down at those times. We will definately fill his days with love and rejoice in the time we have shared with him. I love the way JAM put it... "Help David celebrate the life he has lived". Thank you all for your support.
Tonya