Should I perform what I doubt to have missed of prayers, if I had postponed them on a certain day due to different circumstances than previous days?

Summary of the Unclear Question: If the questioner is uncertain about having missed prayers, she must disregard the doubt and make up what she is uncertain about; for prayer is a debt upon one's conscience that is not discharged except with certainty. If she has postponed making up missed prayers and is unsure whether the postponement was due to a valid excuse or negligence, then she must make them up immediately as much as possible, without causing herself harm. If she does not know their number, she must investigate and make up what will achieve certainty or a strong presumption that her conscience is clear. Abandoning the making up of prayers without a valid excuse is a transgression that necessitates making them up.