Hi,
Welcome to HCM
As I can figure, your mother has
1) problem of talking nonstop
2) history of
breast cancer with chemo 10 years ago.
The complaint of talking non stop is suggestive of mania like psychotic condition, which could be a reaction to a stress out of cancer suffering. However it is important here to asses
1) content of talk wether sensible or non sensible
2) need for sleep.
3) energy levels
4) ideas of hopelessness or suicide
5) irritable behaviour, assaultive aggressive behaviours
6) social impairment
These are the associated complainants and areas of functioning needs to be assessed.
The second condition that is likely, would be a delirious state, which could be due to
electrolyte imbalance, poor nutrition, medications, etc. Characteristic picking like movements are observerd, person is disoriented to place and person, etc.
Considering her age and medical status, I would advice you to show her to a local
psychiatrist, as her complaints are more consistent with a secondary
psychosis, or
delirium.
Welcome for further suggestions
Regards,
Dr Pankaj Borade