Hi, I'm 34 have had Chronic fatigue syn for few years, anyway went to cardiology for orthostatic hypotension and they found some ASDs. Have had bubble echo they could see it shunting but could'nt see enough to determine much. In the meantime the Dr keeps telling me it's unrelated to my symptoms, however, after reading on the net the basic symptoms of symptomatic ASDs is chronic fatigue, exersise intolerance, breathlessness, which often appears in 3rd decade of life!!