Ok so my Gmail app was flashing and not working so I uninstalled it and then reinstalled it.(found out I just needed to wait for Google to update it since many people have this problem) But now it won't go past the Your email will appear shortly. Waiting for sync. And when I go to Accounts&Sync and under Google there is no longer a option for syncing Gmail anymore.
Anyway I can get it to work again?
Try clearing data for the app.
