Is it normal to have bulimia?

I know its not normal, but my mother and my best friend think it is ok. I have bulimia for 6 years, i told my mother when i was 16 and she told me that its normal, then i told my friend and she tell me the same "normal" . I put up with it and continued to vomit every day, thinking that it's okay, gained weight a little higher than normal, but always feel dizzy and sometimes hands are shaking. i want to know is it normal, that my friends and family think its normal?