not getting all my icloud emails on my iphone 5

If you experience issues sending or receiving mail on iPhone, iPad, or iPod touch

1. Check the System Status page to find out whether any known issues are affecting iCloud Mail.
2. Make sure that you're connected to the Internet: try opening a webpage such as apple.com in Safari on your iPhone, iPad, or iPod touch.
3. Go to iCloud.com on a Mac or PC to verify that you can receive email for your iCloud account.
4. Make sure that Mail is turned on in Settings > iCloud.
5. Make sure that Push is turned on for your device in Settings > Mail, Contacts, and Calendars > Fetch New Data. Then send an email to your account to verify that Push is working correctly.
6. Make sure that Push is turned on for your iCloud account in Settings > Mail, Contacts, and Calendars > Fetch New Data. If you're using iOS 6, tap Advanced. Then Tap your iCloud account and make sure that Push is turned on. If you have multiple iCloud Mail accounts set up on your device, Push can be used only with one account at a time. Make sure that Push is turned on for your primary iCloud Mail account.
7. Turn your device off and back on.

If the issue persists, turn off each of the settings in steps 4, 5, and 6 above, then turn them back on. If that does not help, follow these instructions to delete the iCloud account from your device, then add the account back:

1. Go to Settings > Mail, Contacts, and Calendars.
2. Tap your iCloud account.
3. Tap Delete Account. If you store Contacts, Calendar, or Bookmarks data in iCloud, you will be given the option to keep that data.
4. On the Mail, Contacts, and Calendars screen, tap Add Account, then tap iCloud to begin setting up your iCloud account again. If data from your device is stored in iCloud, you will be given the option to merge that data with the data on your device.