For my understanding, sometimes it may be an aspect of treating marriage. Maybe the marriage is not supported by my mother now, and cats are also very powerful animals. You are unhappy because you can't get support, maybe because your family objects. It means that your mother still loved you when she took you to the hospital. I also understand that although I love you, we can't be together. In my understanding, it may be the projection of something in love.
On the other hand. If your whole life is in good condition at present, this dream can't explain everything at once. Sometimes, dreams are an adjustment to oneself.