I went for my lunchtime swim today, did somewhat more laps than usual, maybe swam a little harder than usual. (I am not at all an accomplished swimmer, just a recovering runner.) After my shower I just wanted to puke. I broke out in a cold sweat, felt generally rotten, and quietly wished for death. I had to lie on the bench for about 5 minutes before I could finish getting dressed. This happened only once before, 27 years ago when I ran cross country.
Questions: Is this what athletes call "bonking?" What is the physiological condition that causes it -- build-up of lactic acid? Running out of blood glucose? Not enough oxygen in the brain? Dehydration? What is the preventive -- Big breakfast? Stretching? Being in better shape? Wearing boxers rather than briefs?
Thanks for your help.
