According to your mother's illness, it is mostly regarded as neurosis, which is caused by bad mental stimulation, and often appears upset, chest tightness, depression, uneasiness, poor sleep quality, insomnia and dreaminess, and memory loss.
Suggestion:
Need to use some drugs such as piracetam tablets, compound bromocaffeine tablets, oryzanol tablets and so on. , may gradually improve or recover, to avoid mental stimulation.