Eh...my feeling is that if you aren't occasionally hitting some sort of wall, you probably aren't working out hard enough.
Did you eat too close to your workout time? I can't eat within about 90 minutes of an intense workout or something like this will happen. Could you be coming down with a stomach bug? There is one going around--nationwide.
Make sure that you are well hydrated, take the rest of today off...and then try again tomorrow to see how you feel.
Dances: salsa (standard/LA), casino, rueda de casino, cumbia Colombiana, bachata, mambo, cha-cha-chá, merengue, reggaetón.
Currently learning: Mexican cumbia, danzón, Cuban rumba
Dances to Learn in the future: flamenco, tango Argentino, samba, belly dancing, bhangra, ballroom rumba
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