From your details I learn that your mother had massive haemorrhagic stroke in right cerebral hemisphere
of brain which has lead to low GCS (Glasgow coma scale
) for which she might be ventilated and then tracheotomy done.
Since it is almost 4 months following stroke, she should show some recovery signs in form of obeying commands.
She requires active physiotherapy
, and stimualtion (auditory and visual)
Review with treating doctor for electrolyte imbalance
and EEG to rule out non convulsive status(type of fits where there won't be involuntary movement)
Hope this should help you