Symptoms of fever may appear after vaccination. Generally, it is a low-grade fever, which subsides within 24-72 hours, rarely more than 3 days. So, your joint and muscle aches are related to the low-grade fever now. At present, you can drink more water and rest more, and your body temperature will gradually return to normal. If you have a high fever for several days and your body temperature rises, you must go to the hospital for further diagnosis and treatment. And fever first depends on how many degrees. Fever after vaccination in COVID-19, as long as it is not a high fever (greater than 38.5 degrees), is generally an adverse reaction after vaccination. The proportion of these adverse reactions in the population is not high, which is related to individual differences. It is a normal reaction after vaccination, so don't worry too much. Drink more water when you have a fever, and take a rest, and you will be fine automatically.

If the fever persists, you can go to the hospital for further treatment. After vaccination in COVID-19, according to the physical condition, there will be some rejection reactions, such as fever, nausea and dizziness. Physical fitness has little to do with it. If you have hypertension and diabetes, you need to ask the doctor in advance if you can get it. I've had the Kexing vaccine, but I don't feel anything. Drink more water and less spicy stimulation according to the doctor's advice. It's been a week. All right. Give a realistic example; My husband is in good health and good constitution, but the next day after vaccination, he also had adverse reactions. First, the vaccinated arm said it was sore, accompanied by general weakness and a little cough, but he didn't have a high fever. He had a slight fever, but these symptoms seemed to last only two or three days, and then they all disappeared. But now he is still a little weak and his other symptoms are normal.

So your fever is the cause of your constitution. Vaccines vary from person to person, and everyone has different adverse reactions. My relatives and friends are in poor health, but they have no adverse reactions after taking the vaccine, but they are in excellent health and have many adverse reactions, so everyone's physical condition is different and their reactions to the vaccine are different. I hope this answer will help you!