medical cost for Trixie 5yrs old yorkiepoo

This is for Trixie, she fell last week from couch and when i picked her up she was stiff and biting down on tounge for over 5mins , i rushed her to emergency vet in middle of night, they gave her a shot for pain sent her home. Next day i returned to my vet, they looked at her and sugested to have blood work done on her and xrays, well ive recently lost my job and just dont have the money for both so i chose to have lab work done , now they want to do xrays which are 290.00 i just dont have anymore money ive spent 500.00 dollars last week on vet bills and dont know anything yet, she still having problems breathing and a fast hard heart beat! PLEASE IM BEGGING YOU HELP ME RAISE THE MONEY, she is a resue dog, i got her when she was 11 weeks old she just turns 5yrs , SHE IN MY LIFE , SHES EVERYTHING TO ME! Thank You, Angie Sweet