Answer:
Schizophrenia
Step-by-step explanation:
The disorder Maud is experiencing is schizophrenia. This kind of disorder affects her thinking patterns and ability to behave properly and clearly.
Symptoms include: mood swings, disorganized attitude, social isolation, hallucinations, tendency to hurt herself and others, talking to herself, speech disorder and hallucinations.
Treatment: Not so well defined treatment but medication and psychotherapy could be of help