 [ Symptoms ] i have a thumping in my chest below my breast bone between my ribs no pain but very pornounced and not all the time  i have a cold with a lot of mucus and coughing and hoarseness and have noticed this thumping just recently i am at the stages of clearing my cold but being 73 it is taking a considerable time to clear up it feels like my heart is in the middle of my chest [ Disease ] have you been checked for afib