... has developed debilitating muscle weakness, listing slightly to one side, without accompanying pain, to the point where she cannot function at all. Previously, despite her weight, she had been physically active, now she can barely stand or even use her hands. The cardiologist seems unconcerned, the intern only sent her for PT with no lab tests. This was after a heart attack 5 years ago when a stent was put in. She continues to have one blocked artery which the Dr. chose not to open. Initially her recovery was good except for some fatigue. What is going on here?