Based on the history you provided, below are possible causes for your cat’s weakness. If you still seek further information, please visit our Ask The Vet page to submit a one on one consultation with a licensed veterinarian 24 hours a day, 7 days a week.
Intervertebral disc injury
Medially luxating patella
Early stage panleukopenia
Ok 2 trips to the vet Tori, 2 year old cat, still is not better. Her sister was killed by a car, they were very close. About 1 week after accident Tori started losing weight. I thought depression. Well it got worse…. she was eating and drinking water but still losing weight. She has discharge in right ear, can only tell when it’s dried black stuff at base of her ear. She stumbles a lot and falls all the time. Nothing was abnormal with her labs…cbc. steroid injection helps for 1-4 days. Then back to falling etc. I have spent $500 and know nothing except my baby is 1. Losing weight while eating normally 2. Stumbling 3. Falling 4. Goes limp when you pick her up 5. Has no balance please help my Tori she looks and acts so sad.