Recovering notes on old PDF files

I recently updated my Adobe to the Acrobat Reader DC and now I can no longer see notes that I made on old files using the older version (I am unsure of what version it was). Is there any way to recover the notes? I know for a fact that they were saved originally when I saved the file, I created them last year and used them several times but am no longer able to see the added notes. Any help would be very much appreciated!