I had a blunt chest injury 2 weeks ago and had severe pain in my sternum. i still have pain when i laugh cough or lift items. could this be a fx?

Possible: Yes, you could have bone fracture or organs injuries since it is already 2 weeks. The best approach now is to make a visit to your local physician to get proper diagnosed and treated.

Yes: You may have an undiagnosed sternal fracture causing the pain. X-rays are not 100% at being able to diagnose these. Nevertheless, the treatment remains the same and is nonoperative. Follow up with your primary doctor if the symptoms persist.