I am 66 years old. Itake flecainide to control a heart rhythm condition it is stable for the past year. Yesterday I got out of my chair and walked quickly out to the hall. Suddenly I had a strange sensation in my throat area and upper chest of a feeling of emptiness which stopped me in my tracks I had to lean over to get my breathe then sit and lean over to calm myself. I could hardly speak and waited till the sensation passed which it did after about five to ten minutes then I was back to normal. What happened? It happened about twice a year ago.
Already you are taking antiarrhythmic Chat Doctor.  But symptoms now which you are experiencing are most likely due to ischemic heart disease. It may be developing heart attack. You need to urgently consult the cardiologist and get the EKG, 2D echo and if required should go for coronary angiography too. Symptoms should be taken seriously. Moreover rule out the side effect of