Research has shown that immigrants and minority groups tend to have a lower health status compared to the majority population. The Finnish immigrants in Sweden are no exception. The Finland-Swedes, i.e., persons living in Finland who have Swedish as their mother language, seem to be an exception, however. They have been found to have better health and longer life expectancy compared to the Finnish majority. Research on health among migrated Finland-Swedes is scarce. The aim of this study was to describe and deepen the understanding of how older Finland-Swedes living as immigrants in Sweden, as well as re-migrants in Finland, experienced their health. Data was collected through 39 qualitative interviews with 29 older Finland-Swedes aged 65 or more. Data was analysed through qualitative thematic content analysis. The analysis resulted in five themes: Ageing means becoming frail and closer to death; Despite frailty and old age it is possible to feel well and experience peace; Being grateful for health as a source of life; Health comes from inner strength and external sources; Migration meant a mental and physical burden to health. Overall, both ageing and migration were experienced as jeopardising health.