Yes, I Have A-fib And COPD, Last Night After I

Yes, I have a-fib and COPD, last night after I went to bed, I startted to burp, then I felt like a knot developed in my upper torso, I thought I was. Going to die, I took some antacid tablets and started to vomit. After that I was ok but today after I ate lunch, the same thing happened. I have started taking eliquis and diltizam.