Do you need isolation from Xiangyang to Heyuan?

No need. As of September 20, 2022, according to relevant information, Xiangyang has 0 confirmed cases, which belongs to the normalized epidemic prevention and control area, while the epidemic prevention and control measures in Heyuan are that people in other normalized areas only need to hold nucleic acid testing within 48 hours without isolation. But people from risk areas need to be isolated in the hotel 14 days. See official website, Heyuan City for details.