As per JIRA documentation http://www.atlassian.com/software/jira/docs/latest
The following filter will show the issues opned by me (Current User).
repor
In JIRA v7.3.0, the watcher field works well, if autowatch is enabled:
watcher
watcher = currentUser()
How to enable Profile > Preferences > Autowatch : [inhert, disabled, enabled]
Issues that you create or comment on will automatically be watched for future changes.