How do I recover deleted Reminders on my i-phone 5s

[iMore Question]

was adding & subtracting some reminders and half of the disapeared

 

[Just_Me_D]

You did say that you were 'subtracting some', right? I'm assuming the ones that were 'subtracted' are also the ones that disappeared. Anyway, you can view your list of 'completed' reminders within the app. Maybe some of the ones that disappeared are listed therein.