I got my female chiweenie mix dog spayed Monday (12/16/19) and now she growls at everyone. She's shaking and she wouldn't eat that much or drink. She is on previcox 57 mg 1 tab daily for pain. I don't know what to do since everyone is telling it is a normal reaction after surgery but I can't even go near her without her lunging on me and growling at me. This morning my brother tried to feed her and when he slid her food in front of her she was shaking and unsure if she should take the food and started growling at my brother. I'm not sure if she got traumatized or if they hit her in the spay clinic. She used to be a very sweet and cuddly dog before getting spayed. I am very upset and I don't know what to do because I just want her to trust me again. Has anyone experienced this problem with their dogs after getting spayed?