Percocet is a powerful painkiller, but it is important to use it responsibly. If you take Percocet more than prescribed, you may experience withdrawal symptoms such as anxiety, depression, insomnia, and sweating. You may also become addicted to Percocet. If you are addicted to Percocet, you may experience withdrawal symptoms such as anxiety, depression, insomnia, and sweating. You may also need to seek professional help to overcome your addiction.