Sorry for your issues.
Theser are some basic fixes you can try,
1. Right click the game on origin and click "Repair game"
2. Update PB http://www.evenbalance.com/index.php?page=support-bf4.php
3. Clean boot your pc : http://help.ea.com/en/article/how-to-clean-boot-your-pc/
If nothing from above helps please contact ea live support.
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EA LIVE SUPPORT
1) Visit http://help.ea.com/uk/contact-us/?product=battlefield-4
2) Press: New Case
3) Select Platform after that press Next
4) Select a Topic and name then press next
5) Select a contact method
I hope your problem gets fixed.
If my answer has helped you I would appriciate you to click XP button on my answer and select as solution . CHEERS.TeamSix_Cooler -CHEERS