I´m couple of weeks AFTER my Ph.D. defence ("lucky bitch" I hear some of you say ) but I know EXACLTY what you mean. We go through the same thing, INCLUDING the happy end!!
You´re lucky you can cry... Gets some of the stress out.
I consider my thesis like my baby, writing it for little more than half a year, hormones jumping on the walls, extra pounds and the painful delivery. But I´m a happy "mama" now
I dyed my hair blond, cos now I can be as blond as I want, I´m a Ph.D.
It´s so worth it!