About a month ago I completed a 2-hour, 40 mile bike ride in the summer heat
& humidity and
suffered severe heat exhaustion
which included nausea, dizziness, extremely high rate, dehydration, etc. Ever since that time it seems by body has become extremely intolerant to high heat
& humidity. Just being out in the heat
in a sedentary manner causes my heart to beat out of my chest and
I end up extremely dizzy & lightheaded.