"You can’t tell it from this photo, but Barack woke up on our wedding day in October, 1992 with a nasty head cold. Somehow, by the time I met him at the altar, it had miraculously disappeared and we ended up dancing almost all night. Twenty five years later, we’re still having fun, while also doing the hard work to build our partnership and support each other as individuals. I can’t imagine going on this wild ride with anybody else," Obama wrote.