Heard about that. And it's not fun.... and having twins up in that to, all I can say: "stay positive. stay in what you see in front of you. love the moment, if not, find something that made you smile and stay there. think about the future, all the fun you going to have with those twins, when you suddenly want to be 10 ear old again.. or 5 or just want out that little baby/kid in you again."
I can write more... but I think you got the idea. So stay positive, don't let things stress you, just take the time you need.
I think this one sums it all up:
one small tip from my side. something I always do, I decided in December last year that I would stay positive, and always smile and take things with laughter and humor, what ever happens. Had an accident at work before summer, answered it with humor...
btw. if you can get a small camera. or if you have an smart phone, get an good video app for it, so you always have an video camera ready within seconds, then you can film happy moment with you'r kids, so when you need something to get you out of the zone, watch the video. (simple things can always...)