Welcome to OCF. Sorry you had to join. As you can see, just like the small print in the auto ads: "individual mileage may vary". I worked through my entire TX the first cancer, but from home via secure VPN connection to work for documents and Blackberry with speaker phone for emails and conference calls.
Your profile indicates you are a financial advisor and I did lose my voice at the end of TX for a week or so which made phone communication impossible. Otherwise, like Eric, William and David, I found work doable. In my case it was actually good to be busy from 1 to 4 am when I couldn't sleep.
Keep the faith
Charm