Hi, I experienced something I have Never experienced before today. I was sitting in my office and all of a sudden my heart started to beat forcefully, and I got dizzy, very dizzy within seconds I felt blood (heat almost) rush up to my head and my assistant said my face turned beet red . It scared me, within seconds I was okay and normal. However, after I felt soar (like I worked out) on my left arm , mostly upper left arm. I am 37 female and healthy. I eat very healthy. What could it be?