My reminders disappeared, how do I get them back or find them?

Today I went through all of my notes and all of the things I needed to do all of my little pieces of paper, and I put them all into my reminders in my phone. And there were like 25 of them, and then when I got home this evening to go look through them, they are gone Please please help me figure out if I can find them again. I’ve thrown all those pieces of paper away and now I don’t know those 25 things. I am really needing to get that please please please help. Thank you.