Normal peak flow meter test, normal ct of lung, normal chest xray , normal echo, normal pulse ox / blood pressure can this rule out interstitial lung d?

Most likely: The results suggest that you dont have significant cardiopulmonary illness. However if your symptoms persist your doctor should consider other causes including non physical.

Yes: Hi tiffany, you don't have ild. Normal pulse ox is 95-98% on room air. Your pulse ox of 100% suggests hyperventilation. Next time you're feeling sob, try re-breathing into a paper (not plastic) bag for 1-2 minutes and see if that relieves your symptoms. Bew.