Terrified and in pain!

I have had excruciating left breast pain for about 3 weeks now.  I have seen my doctor who has ordered a diagnostic mammogram and ultrasound. I'VE NEVER HAD A MAMMOGRAM!  The idea of squeezing my breast makes me want to faint.  I can barely touch it.  The pain starts under my arm and goes through the breast and nipple.  It has also been oozing a dark blood-like liquid.  It feels like I'm being stabbed with needles in my nipple.  When the pain became unbearable and so bad that it was making me nauseated I went to the ER, who couldn't help me .  So now I wait...The "what-ifs" that are running through my head are horrific.  I can't remember the last time I had a full night's sleep.  I am just a mess.  My husband has been a rock.  He helps me dress, bath and anything else I need.  I know the not knowing is hard for him too.  He lost his mother to breast cancer after a 15 year fight.  I am doing my best to hold it together when my family is around, just to keep their worry down a little less. But that means I'm crying alone at night when they are all in bed.  I just needed to vent!  Thanks to anyone who reads this...