Welcome Molly!
You are definitely not alone.
And as suggested already, track down a gender therapist as soon as you can to help you sort things out and prepare a path forward, because pushing such things away won't ever make them go away ( lots of literature on this matter) and it will just come back worse and as you progress through life you will have more and more complications to deal with ( resentful wife who feels she was cheated all these years, kids, career etc).
There are some gender therapists who are very good and are available via skype, so you do not have to be within easy travelling distance.
Get it sorted as soon as you can for the sake of your own mental health and that of your life companions.