Gina, none of us are doctors (that I know of), so speaking with your physician would be the best thing to do, just to be safe. Have you taken any decongestants lately? On two occassions, in the last year or so, I experienced a "racing" heart that felt like what you are describing and both times, it was after taking a strong decongestant (one was a 24 hour Claritin D and the other was Zyrtec D). Needless to say, I won't be taking those again!
Logan
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