Sept 22 (Reuters) – Euro zone consumer confidence fell by 3.8 points in September from the August number, figures released on Thursday showed. The European Commission said a flash estimate showed euro zone consumer morale decreased to -28.8 this month from -25.0 in August. Economists polled by Reuters had expected a fall to -25.8. In the European Union as a whole, consumer sentiment fell by 3.5 points to -29.9. (Reporting by Adrianna Ebert in Gdansk) (( Gdansk.newsroom@thomsonreuters.com ; +48 58 769 66 00; ))