Hello, today at noon my cat began to limp, occasionally raising her left hind leg, but it got worse and now she doesn't even want to walk. I looked if she had an injury but she has no scratches, blood, scars, etc. It does not appear that the leg has been bent because its shape seems the same as before. I have also noticed that since noon, she has been very tired. I thought she fought with some cat but my cat has no injuries. Does someone know what could it be? Thanks for reading.