Hi. I have what is suspected to be Roemheld syndrome. I have had all the heart exams, sonars, angiogram, blood work etc. No physical heart abnormalities found. I have a hiatus hernia, (I have undergone stomach PH tests, pressure tests etc - all normal) which is suspected to be the culprit, as I build up so much gas that it appears I am having a heart attack, and at the same time my blood pressure spikes to dangerous levels. I also do not react to any medication. My doctor is also not clued up on the condition. So I too am looking for more information.