Quote Originally Posted by Dogmama
Frequent illness is a sign of overtraining. You can overtrain easily when you add life stressors onto a heavy workout schedule. And, it sounds like you have a pretty stressful life right now. How about gearing down a bit - giving yourself a couple of days rest or active rest each week?
I definitely second this. I had a goal of riding every day last year, plus some ice hockey and some martial arts and ... well, I had all sorts of symptoms of overtraining. Poor sleep. Frequent illness and injury. Constant fatigue. It sucked.

Here's a list of symptoms:

http://sportsmedicine.about.com/cs/i.../aa040600a.htm