I have been supplementing with kelp powder, 1/4 TSP 3x/day, and sometimes after I take it and other times during the day I notice that my heart is pounding or racing, and at other times I get palpitations. After taking it my face also sometimes gets flushed. Is this from the iodine? ..... I already had the problem of fast heartbeat at times and sometimes pounding due to anxiety and mitral valve prolapse and a medication that affects heart rate. I would also sometimes get palpitations. However, am wondering why the exacerbation.