Normal ekgs..normal echo..normal stress test..normal chest xray and blood work good..is a ct coronary angiogram needed? or all these tests sufficient?

Probably sufficient: I assume that these tests were done for evaluation of chest pain. Unless you have extreme risk factors, the likelihood of chest pain being related to coronary artery disease in a 28 year old is very low. The key to determining the cause of your chest pain is a good history by an expert clinician, supported by a full examination. There are many non-cardiac causes of chest pain.