I am 51 , 104 kilos, and 179cm. I have Dilated Cardiomyopathy since I was diagnosed november 2008 and I have an implant since last year may. But recently when I was sleeping a friend realised that was shaking the whole body for about a minute! He called my name & I just mumbled! What could that be?

Summarized question: What causes shaking in body while sleeping and having dilated cardiomyopathy?