Is it obligatory for a woman who has abstained from fasting for four years due to a psychological illness (fever and nervous disorder) to make up for the fasts she missed?

If she leaves the fast of Ramadan (definition) due to inability, she must make up the number of days she missed when she is able, according to the Almighty's saying: "And whoever is ill or on a journey, then [he must fast] an equal number of other days." If her illness and inability to fast are not expected to cease, then she must feed a poor person for each day she missed, equivalent to half a sa' of what her family eats, and she is not required to make up the fast.