Did they do an ovary sparing spay?
http://speakingforspot.com/blog/2017/02/26/ovary-sparing-spay-surgery-oss/
http://speakingforspot.com/blog/2017/02/26/ovary-sparing-spay-surgery-oss/
(Not a vet)Both times I asked, I was told that everything came out. So if they missed some of the ovarian tissue, it is possible to get this side effect?
Something I failed to post in here, was that it lasts about 6 weeks.