Notes lost after email account deleted
Hello. I recently deleted an email account I am no longer using from my phone (iPhone 6). When I was deleting it, I noticed the account indicated "notes", but did not think anything of it. A couple days later, when I went into my Notes, I noticed that none of my recent (from the last 2 years) notes were there anymore and I have since realized that my Notes must have been synced to this email. I have tried a couple recovery softwares and have not had any of these notes come in through that process. I also tried adding the email account back in and the Notes did not come back. Unfortunately, I was not syncing to iCloud or to iTunes. Does anyone know if it's possible to restore these Notes?
Thank you for any assistance!
iPhone 6, iOS 10.0.2