What is incumbent upon one who has broken their fast for many Ramadans due to an excuse then recovered, and wishes to make up what they missed?

If a sick person breaks their fast in Ramadan, there is no blame upon them. However, they must make up the days they missed if they recover and are able to fast without negative health effects. But if fasting adversely affects them and causes unbearable hardship, and this condition is not expected to cease, then making up the fast is waived for them, and they are required to pay a fidyah for each day they missed. This fidyah is to feed one poor person approximately 750 grams of food for each day.