CRAMP!!!

oh boy, so on day 4 of my bikram yoga, i was feeling pretty good 'cuz i'm keeping up with my routine. i rushed to class after eating 1/2 sandwich and a couple slices of cantaloupe about 4h prior, and not drinking much water all day 'cuz i was busy test driving cars. =P anyhoo, i go to class, by the 5th move, both my arms started getting tingly and numb. i tried to shake it off, but it only got stronger, from shoulder to fingertips. soon enough, my legs got numb, as well as sides of my body! with 30 min left in class, i began cramping up, my fingers stuck in positions that made me look like i had rheumatoid arthritis. i stopped doing the poses 'cuz all i could think was, "how do i get this numbness/tingling/cramping to go away?? and i can't untangle my fingers!! am i gonna start having a seizure? i better not pass out, how embarrassing!!" so once class ended, i immediately tried to get up and out of the hot room, but i could barely walk--my quads and calfs had cramped too. so i limped out, the instructor immediately asked if i was ok, and found out that i was most likely dehydrated (duh!). so he gave me electroyte fluids and made me drink a liter...20 min later, i was all better. but it was FREAKY! i've never cramped like that in my life where my entire body was contracted! hehe...even worse, i went to play 3h of badminton right after this incident...and had some heart palpitations where i had to stop 'cuz i couldn't keep my breathing up to match the need! so next time i better be a bit more careful! i've learned my lesson already, and will drink lotsa lotsa fluids before next class!