After my 30 minutes of walking at a typical pace (not pushing myself very hard), I feel dizzy, extremely out of breath (breathing as hard as a typical person after a strenuous run), and my heart
rate is up around 130. Also, my heart
beats so hard that it moves my entire body and I can constantly feel nearly every single beat for at least 15-30 minutes after that. Once things go back to normal (my resting pulse rate is around 80), I generally just feel kinda sick for an hour or so.