Constant angry and imagination. Me plz!

My mom was 49 years old she is very calm person but for the past three years she is getting angry always she seems angry she is always shouting she is not speaking with affection on others she is always making quarrel with other peoples all in road whenever she go if we asked the reason for quarrel she is telling that they are scolding her it is a business they are scolding me using bad words so I am scolding with only one word she looks so weak with no strength on her body but her voice is more terror when she shouts no one can control her that much force she will give but she cooks well she travels to other districts well she does her work all well with more neat she knows her family she remembers all past life we are confusing why mom is imaging about others why always spoiling her health she is not eating well to did my mom is suffering from mental disorders plz plz plz help me plz