Hi. My Mother Was Discharged From Hospital 2 Days Ago

Hi. My mother was discharged from hospital 2 days ago after being admitted with community acquired pneumonia. She was seriously ill and had to have life saving measures. Hospital comment on her discharge says that she was treated with antibiotics clarithromycin and amoxicillin and her inflammatory markers (and an acute kidney injury) are now improving. Whilst in hospital and on discharge, she had quite serious delirium, hearing music, imagining strange happenings, most slightly psychotic. Noone seemed to notice or remark on this. Now that delirium has completely gone (immediately morning after discharge), thank goodness. However she is very very fatigued, sleeping a lot during the day (sort of narcoleptic). The fact that she has now been prescribed Bisoprolol to slow her heart rate and Amlodipine for BP probably doesn't help. I'm particularly worried about the latter which I think was prescribed towards the end of her 8 day stay when I first noticed her drowsiness. Is there anything I can do to counteract this fatigue and help her get better?