Is it necessary to repeat fasting when observing multiple expiatory fasts for oaths without designating each fast for a specific oath?

The questioner's fasting was valid, and she is not required to repeat it. This is because performing several expiations of the same type does not necessitate specifying each one with an intention, as they are all expiations for oaths. There is no benefit in specifying them. Nor is it obligatory for the fasting of one expiation to be continuous with the fasting of another expiation.