Thank you for your response. It is helpful as it gives me a better understanding of may be going on. I suspect its the chemo-radiation catching up with her, she's 5 weeks into it. I'll call the oncologist on Monday. It was just after the nurse left that her shaking got so bad, but with extra blankets she finally calmed down.
Because I've experienced chills and shaking after a mild periods of coldness and have associated it with a bout of phenomena I had. So, it got me concerned. Thank you.