I feel bad for you. Let her be. No chasing or catching. Get some tuna and put a little in a bowl when you go to bed. See if she eats it overnight. Do it again and again until she lets you watch her eat. Then try to lightly pet her while she’s eating. If you can’t get it ironed out in a week or two then it will be really hard to socialize her. If it is true she was fostered she’ll come around. If she doesn’t then they lied to you and she’s wild. Good luck.
She's currently still under my bed so I just now slipped a bowl of food under there for her.............We'll see what happens.