thanks for ur comments ,
the only presumed diagnosis was benign essential tremor.
doctors usually examine the patient in bed& the patient fully oriented and has no weakness in any of the muscles,as there were no significant focal neurological deficits an Wikipedia reference-linkMRI would have been ruled out & the patient currently is for rehab in the view of returning to live on his own in a house. i did attempt to sit her on the edge of the bed with help of 2 ,he just lasted few seconds,I clearly agree with FIZZ that this should be related disturbance in visuo spatial awareness, however without a proper differential diagnosis tool, I am struggling to validate my stand for for diagnostic imaging. any help would be very much appreciated .
tnx in advance