1. You may have rickets. This disease usually occurs in cats with folded ears. It is a congenital genetic defect disease. There is no cure.

2. Nervous system problems: such as epilepsy, spinal cord disease, etc. Treatment targeting the nervous system is required, such as oral or injected drugs, rehabilitation training, etc.

3. Malnutrition: Cats lack necessary nutrients, causing muscles to fail to function normally. It can improve cats' eating habits and nutritional intake, provide high-quality, balanced cat food, and appropriately supplement necessary vitamins and minerals.

4. Bone and joint problems: such as knee ligament rupture, patellar dislocation, arthritis, etc. Relevant examinations and treatments are required, such as surgery, physical therapy, drug therapy, etc.

5. Poisoning: such as lead poisoning. It is necessary to determine the type of toxin and take timely detoxification measures.

6. Digestive system problems: such as severe flatulence, constipation, etc., which may affect the nervous system. Causes damage to nerves or bones. Corresponding solutions need to be taken, such as relieving flatulence, adjusting diet, increasing exercise, etc.

7. Trauma: such as injury, fall, etc. Relevant examinations and treatments are required, such as formulating an appropriate rest plan, local cold compress, etc.