Is getting better getting worse?

I have a problem with chess, i play it almost nonstop (when i can) for months at a time, and i'll get better and better, and then i'll hit a rut and start sucking worse then the lovable Ms Anderson.

Does anyone else have that problem?  How do you get out of it or stop it from happening?  I just usually suck it up and take 2 weeks out of playing chess completely which is what i need to do now cause i'm in a hole i can't get out of..

Any suggestions??