Talk to Internal Medicine on Breathing Problem

I’ve been having trouble breathing for the past two months. While eating, it feels like my breath will stop any moment. I’ve quit drinking tea, fast food, and everything else, but still I don’t understand whether this is due to my stomach or narrowing of the windpipe. I constantly have difficulty breathing. Which doctor should I see—cardiologist (heart specialist) or gastroenterologist (stomach specialist)?""I also used Meketa tablets, but they didn’t make any difference."