Based on a doctor's advice, I've taken the last three days off from teaching because of my worsening sleep problem. It's very unusual for me to take sick days from work. Even though I haven't been teaching, I went in a couple of times to do prep for my sub and have been doing some other work from home by e-mail and phone. I also have university assignments that I need to go back to marking. I'm counting the days until my overnight sleep study on March 31 at RUH's Sleep Disorders Centre to see if I have sleep apnea so I can get some treatment.