A Successful tracking is the results of successful preparation and observation. Every thing you gave us is incomplete, or explained too poorly to make any kind of a sound judgement. All we can do is make assumptions which will probably lead to wrong conclusions. To start with, if she turned away and you shot you have to be more exacting than in front of the boiler room. Just where in the heck did you hit? Behind the shoulder at an angel??? In front of the shoulder across the briskett???(Kind of hard to do when a deer is turned away) What did you hit. My first thought was you slipped under the shoulder and out the front but your description is too vague. You say blood on the arrow??? How much???? Bubbles??? It's been my impression that most people can't tell bubbles from splatters. The most bubbles I ever saw on the ground came from a deer that was shot behind the shoulder, broke the knuckle of the shoulder and exited in front. The arrow never entered the chest. Bubbly blood everywhere. I watched the deer die 600 yards from where I shot it after kicking it up twice. The bubbles were caused by the blood, grizzle and action of the broken should flopping around. I had knicked the leg artery which eventually caused the deer to bleed out. YOu really got to be more precise in your description. And like someone said, NO WAY should you have to ask us what possible organs you may have hit. LEarn the anatomy of a critter. It's in books.