Listen here bud. Get that chin up

. Now.
I agree with the others, it sounds like took a piece of the shoulder. Sometimes you can make a great shot and that happens. 3-5 inches is enough to slice up a lung.
Last year I double-lunged my buck. I didn't get a passthrough, but It went in up to the fletchings. It took me and my buddy and hour to find any blood, and I mean it was just specks. Another hour later, after searching on our hands and knees the entire time, we found him not 60 yards away. All the blood we saw wouldn't fill up a Dixie Cup.
Point is, don't give up. And if you do feel it wasn'tafatal hit, DO NOT let it get you down. Get right back in a treestand and go after them again. I mean, I missed the first 2 deer I ever shot at with a bow and I was devistated then, but I loved it through it all.
I see it like this. You've got experiance under your belt now. That is something that can't be bought, only learned

. Go right back after them.
I won't be at the computer for the rest of the day so shoot me text if you get any updates.
Good luck man.
EDIT: Now that I can see the pic of the arrow, I don't think that is a fatal hit. I would say 95% that you lodged it in the shoulder, it broke off in there, and she ran off.
ANOTHER EDIT: She could very well be dead. My words are no expert advice. You never know sometimes
That's why they call it hunting