Does Canada Have A Totalization Agreement With The Us

I had 5 years of social security contributions in Britain, while I only lived one year out of two tax years in the UK and would normally need 10 years of qualification to qualify for a UK public pension. However, I can “buy” up to 10 years missing at a reasonable price. I have scoliosis and I can`t work. I worked in Canada in 2011-2013 and in Germany from 1971 to 1983 plus the period of education of children 10 years. My disability application is denied. Who can help me? We are not in a good financial position. My husband is sick, he has arthritis, we have a mortgage on the house. I immigrated from France in 1957 with my parents, I am now 78 years old, I have work in France between 14 and 17 years old. I have dual nationality. My question is. .