Happy Birthday Michael and Nana. I feel for you today as I know oh so well those bitter sweet holidays that you need to celebrate but they rip you apart as well. I often burn a fancy candle on these days to represent the one who is missing (for me, my daughter). It makes a stong statement for the children we have now (neither knew Megan - one is her age but adopted and the other ours, but both came to us after our loss) that even when gone, you will never be forgotten and still matter very much.
Sending you hugs and wishes for a day that is much better than expected - even glorious.