Why do i feel so angry at my mum?

My mum has always given me love and what i wanted when i needed it. now when ever she is around i get angry at her for no reason. i lash out telling her i hate her although i have never hit her. i shake with anger. i don't know what to do, i am 16 i no it's not hormones. i love her and would do anything for her but she just makes me angry. what do i do, what is wrong with me??