Can I Work While Having Treatment?

Hi - I'm a single parent, only 44 years old, and I have cholangiocarcinoma.  It was dx only 3 weeks ago.

Next week I start chemo and radiation therapy.  As a single parent of three, I really need to continue to work as much as possible in order to provide for my children.  Short term disability only will pay 60% of my earnings.

Has anyone had experience with trying to work while undergoing treatment?  Do you get too sick or tired to work?

 The cancer care center is only a 20 minute drive from my place of employment.  The kind of work I do is on computers (GIS, SQL).

A few more details - I live in the Seattle area ( the place to be if you get cancer! )

 I'm female, and in excellent health except for the cancer.  Up until a couple of weeks before diagnosis, I had been trying to ride my bike 10 miles every other night.

~ Lisa