My hands shake uncontrolably when holding any object smaller than a beer mug, and usually at a height above my heart. larger objects anchor them so little to no shaking. i cant control my signatures anymore either. what could this be?

Shaking hands: need to be evaluated by your doctor or a neurologist. It could be several things, including pinched nerves, tremors that some folks get, or a neurological condition. Your doctors will diagnose and help. Peace and good health.

Time to see a: neurologist to rule out Parkinsonism versus essential tremor and any other underlying illnesses.