The 5.1.1 IOS update has deleted all my reminders
I have done the 5.1.1 IOS update and now all my reminders have been deleted. They are not on my phone or on my computer. They were on the apple reminders app that appeared after the last software update (the one with the icon with a list and ticks/checks). My whole life was on there! Is there any way to retrieve them? Any help appreciated.
iPhone 4, iOS 5.1.1