Not getting notifications on my iPhone

"Not getting notifications on my iPhone: I Am Not getting Mail, Facebook Notification, Whatsapp messages and other notification of apps until I open the app. App displaying Messages only after i open the app. i also done reseting my Iphone but it doesn't work."

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If getting no notifications..

Clear you Notification History:

1. Go here: Use notifications on your iPhone or iPad - Apple Support
2. Scroll to: Open from Notification Center
3. As it Reads: To clear your notification history, tap the Close button, then tap Clear

After you open the app, have you received the pop up that asks you to allow notifications? Be sure you dont have a focus mode turned on as well.