If you can get out of answering the phones for a specified time ~ does your phone have one of those Do Not Disbturb buttons so you can mute your phone?
I'm sorry that is happening. First thing as you said, no BYC ~ you might want to stay off of during lunch as well, maybe for a month ... use that time to organize. I know most people would rather take lunch, but ~ just for a little while.
Can you tape a list of things to do where you have to...