Hi, i am 3 week post op everything was fine until 3 days ago i started having a pain in my chest when i breath ! if i took a deep breath it will hurt as hell i went to the doctor they made ECG they said it was fine and blood test was fine as well i don't know what to do !! i am scared any body help ?

The two most common problems that occur after bariatric surgery are pulmonary embolism and a gastric leak from the anastomosis. It seems like you are showing at least one of the symptoms of a pulmonary embolism. Pulmonary embolism is a life-threatening condition. http://www.mayoclinic.org/diseases-conditions/pulmonary-embolism/basics/symptoms/con-20022849

I agree. That's not right and warrants a trip to the ER. PE usually doesn't present with that severe pain; more a shortness of breath, coughing up blood maybe. But it could. That kind of pain after any major surgery needs a further looking into.

but i only have the pain without the other conditions could it be it ?

Yes.