There are many reasons that cause cats to have weak limbs and unsteady walking, such as: 1. Injury or fracture to the head, body and limbs. At this time, the owner will have obvious pain when touching the cat and need to seek medical treatment; 2. Cold, fever, etc. If you feel dizzy and unable to control your limbs, you can take antipyretic and cold medicines to relieve the symptoms; 3. Developing cats lack vitamins and calcium, and they can recover on their own by providing nutrients to your pet.