Hey zdhprlq3u8rc,
If you don't recognize this email, it may be the case that someone else gained access to your EA account while you were away. If you haven't already, please be sure to go through as many of these security steps as possible just to make sure everything is secure.
After that you'll need to get in touch with our support team to help recover the account itself. As they'll need to discuss private account details, that is not something we can assist with here on the forums.
You can create a new case here and select Game Support > EA Account > I need help with my hacked account or I need help logging in to my EA Account so the support team can assist with the actual account recovery.