Could be false pregnancy. Is she drinking more water than usual. I would highly recommend doing a blood panel to rule out Pyometra!! My girl jumped off the poarch and cried. I thought it was her back took her to work for xray and saw that her uterus was enlarged. Did white count high. Put her on antibiotics Friday went to specialty over weekend she acted normal. Monday her white count had risen another 10000 so we spayed her. Her uterus was full of pus. If I had waited for symptoms she may have died. Please contact your veterinarian.

Thank you. I'm taking her in for ultrasound tomorrow. She's been eating normal today and seems to be acting her self again but I do wanna make sure she's fine.