Do i have anxiety what is wrong with me?

well im am 14 so i know a lot of this could be just growing up or something i dont know. whenever i arrange to meet my friends i cry while i am getting ready and just call it off last minute or just dont go. i hate going places where i know i will see people i dont know or people i know in my school like into town for shopping i dread it. whenever i get ready i cry and i just take all my clothes and makeup off. i get really paranoid about simple things it seems like my friends hate me and are talking to me behind my back whenever they do somethng. i try and have a joke but i take eveyrthing they say into heart. whenever they say lets go into town or we are about to go somewhere i start like shaking and feel dizzy and really dont know. i always feel like im walking on egg shells im scared incase my parents argue so i just sit in my room. i would rather sleep than getup until i am forced to, i aint tired i just dont wantto see anything or anyone? what is wrongwith me? it has got a lot worse lately. i am sort of bulimic i worry about my weight often and i hate the way i look. i selfharm and i am currently seeing a counsellor.