I'm 60, and have rheumatoid arthritis, atherosclerosis and CHD. I had a CABG six years ago after two failed stents. I'm on Humira, prednisone, sulphasalazine and crestor. I am extremely fit, but find that oral cortisone gives me severe heart palpitations. Sometimes these palpitations after taking cortisone (for the r/a) are so bad I feel as if I am losing consciousness. Should I stop taking cortisone?