seizure swimming

This morning's swim workout:
100pull
100kick
100pull
100kick
100pull
100 finger tip drag
100 tennis ball in hands
100 one arm
100 one foot in the air
100 someother drill
100 some other other drill
400 easy+
4x100 descending to full speed
4x50 on the minute
4x25 on the 30
200 back c/d
2400 was the total workout. I musta blacked out somewhere in there, cause i cant do the math or remember in all those drills. all i remember is that somewhere in there i was holding a kickboard, and trying to keep one foot out of the water while the other one kicked... I wasn't really moving forward on that one, so i kept stopping cause the foot that was supposed to be kicking was down at the bottom of the pool. I finally figured it out, and think i likely looked like i was having some sort of seizure there at the end of that one. Sorry, this may not be great english, I am still recovering.