Hello and Welcome @merideth
I’m really sorry your having notification issues. Fitbit is aware of these issues and hopefully a fix will come soon. This link will give you more information about individuals dealing with iOS notification issues: https://community.fitbit.com/t5/iOS-App/Stopped-seeing-notifications-after-updating-to-iOS-13/m-p/38...
Im sorry I couldn’t be more help.
Best Answer