... sound in my head. I also get waves of chills running down my legs on occasion. Never had this before. Age 72. Feel this way all the time! I also have tightness in my chest, heart palpitations, pulse 91, and a cough that wants to linger. I have been on Eliquis for two years and have not felt right on it. I feel tired all the time and also have tightness in my upper abdomen. I am also very bloated and gassy. Not fun.