Mouse
Psychological (Freud)
In depth psychology the mouse often mirrors the small, gnawing worries and unspoken fears that secretly eat away at one's peace of mind. Its timidity may also point to a shy, self-diminishing sense of self that withdraws from notice.
Oriental reading
In the tradition of Ibn Sirin the mouse is often a symbol of a woman of doubtful conduct or a hidden pest in the home that quietly drains one's wealth. Many mice may point to damage, theft or dishonest household members, while driving them out signifies relief.
Animals
Dream interpretation is for self-reflection and entertainment — it is not a medical or psychological diagnosis.