I yelled at my puppy yesterday out of frustration and stared her down with an aggressive body language (**** on floor, jumped on chair to chew on jacket, constantly grabbing my towel as I was scrubbing her poo, etc.) and now she seems afraid of me. Looking sadly at me or avoiding eye contact, ignoring simple commands such as Sit and Come, and curled up on the floor or in her crate. It's continued this morning as well.
How can I build her trust back up? Is this going to stay with me and haunt me forever? Or is it possible that she is sick from something she picked up from a neighborhood walk?