You may need to provide some further information - first, I'm assuming that you mean the native 'Notes' app on the iPad? Second, how are your notes being synced? Have you backed up your notes to iTunes? Finally, take a look at THIS DISCUSSION for some other suggestions.
Please post back after the above considerations - good luck!
Yes Notes app. Backed up on cloud a couple of days ago. I am a iPad rookie. Had mine about 2 months. Thanks but no success at my attempt to recover yet. Your hints/ help is appreciated. More.....