(All the tests have been done multiple times) I am in Atrial
Fib/flutter most of the time, I am currently on 150mg of Metoprolol
twice a day and a 81mg aspirin. I have been experiencing chest pain (a dull ache) 80% of the time, My chest tightens up, I also get a sever pain in my back below my shoulder blade on the left side, This causes difficulty breathing especially when bending over, and is very painful when taking a deep breath. I have been to emergency when this happens.