My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. I've also been a breeder for over 20 years. It will be my pleasure to work with you today.
If she was recently spayed, it is likely she is experiencing a false pregnancy. The sudden change in hormones may have triggered it. Dogs experiencing a false pregnancy will often have weight gain, breast development and even milk production. Some even go through false labor where they scratch and build a "den" and "adopt" a stuffed animal or other toy baby for several weeks just as they would if they had had puppies. What you are seeing is something we see depending on when the spaying occurred.
It is likely she will continue to display these symptoms for a few weeks. It will help if you give her a pile of old blankets for her to dig in and make herself a little whelping area and give her a few of her favorite toys to baby. This will help give her a place where it is acceptable to dig and display nesting behavior without ruining your home. It will pass and probably a little quicker than normal. Be sure to put the blankets in a low light out of the way place where there isn't much traffic and keep other dogs out of the area if possible to reduce her stress level during this period of adjustment and recovery. Some sites will recommend against allowing her toys and nesting but that can really cause a lot of stress during this recovery period. I've found they settle quickly if given the opportunity to care for false pups.
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