IPhone 5 :: How To Recover Notes That Disappeared

A few weeks ago I was going through my notes, (I have them all numbered and labeled because I am a musician and write all my lyrics in my iphone- have done so for 5 years+ and always kept them in my notes connected to my yahoo account.) moving them in order beginning at number 1. I got to 10 and noticed 1-6 and number 8 had dissapeared- yet number 7 and 9 were still there.

Not sure if this matters but my internet data ran out, so it wasn't connected to the internet and I was at the doctors office so it wasn't connected to wifi when i was editing the notes- but usually it makes no difference whether it's connected to the internet or not because when I get home and connect to my wifi there is two different sets of the same notes that I edited. I have already restored my iphone with a backup from on 11/20 which was four days before

I messed with my notes so to my knowledge I thought the notes should have re-appeared but it shows all the same notes from before I backed it up which was last night. My iphone is the original 5, 32 gb. This is very important to me if I can't get these notes back then I lost about a hundred different written songs/verses that I have not yet recorded and were only stored in my phone's notes!!!!