Just diagnosed Stage 1a uterine cancer

I was diagnosed on Thursday. The consultant is happy that surgery (hysterectomy) will take care of it and the operation will take place within a couple of weeks.

So, I've been pretty upbeat about the whole situation. I'm happy that the symptoms I was/am having will stop soon BUT I woke up this morning feeling completely overwhelmed - I would like to know if this is normal? I know in comparison to other cancers this is just about as good as you could wish for.

Thanks