Burnout!!

Okay, I haven't swam for 3 days due to our pool closing for 3 days during Christmas, and when I returned today, boom, it felt like I didn't know how to swim. The 3 strokes that I do for fun, free, fly and back, I could do well like 3 days before. However, the only stroke I really like and consider in competing, breaststroke, came to me today as a completely foreign stroke. Not only have my times increased drastically, but I just overall felt like I couldn't swim the stroke. First, my feet cannot grab the water. Every single length I swam was with feet slipping water and with me barely inching forward on each kick. I will go forward very slowly for a very small distance, then almost stop dead, right there. I swam the worst workout I've ever had. I timed myself on the 25 and 50 today, just because I was curious. For the 25, first time I timed myself, I got a 21 seconds off the paceclock!!! That's 2 whole second slower than the last time I timed myself, which was about a week ago. Hiowever, I timed myself again about 2 minutes later, and got a 19. Also, am I crazy, or does our pool's paceclock sometimes go slow and sometimes go fast? I stared at it for about 2 minutes and sometimes the hand will go faster, sometimes slower. Is that just an illusion? For the 50, I again swam the worst 50 I've ever done. I had no form whatsoever, no mental concentration on form, and no strength. I ended up doing a 42 second 50m SC. FAR from my goal of 35 seconds by september of next year. I know that I swam horribly because I did a 14 stroke 25 followed by a 16 stroke, when I usually do both 10s. What's wrong with me? I've been working my hardest the past month and even took a second off my 25, from 20 to 19. However today I just burned out. I felt like I was simply UNABLE to hold my form; my strokes were all over the place, and I had no strength. I wouldn't feel pain while pushing myself, just a simple inability to move my arms and legs. They'll feel comletely normal when not moving, but once I try to get them moving fast, well, my muscles just flatout refuse. So basically I feel like I made no improvement over the past 2 months. I blame it on a lack of organized workout plans =). Can an organized workout plan help improve better? Also, what is wrong with me? Is it a burnout today, or have I hit a plateau, or is it a bad day and will it pass?