Thread: should i tell my friend that im not at the same age as her?

i think she thinks that im the same age as her, but i avoided telling her. i think its best not to tell her. i ididnt lie or anything. she asked me if i was born on december, january, etc. but i just said no and when i said i cant go to the night club, she askd. but i said nevermind. plus, she'll think why i didn't tell her today when she said this.
my other friend said that she wouldnt care.
shes dec 1988 but i told her im nov, she thinks 1988, but im 1989
i dont go to night clubs so its ok, but were in 1st year university

i feel guilty because im not giving her an opportunity to know the truth, but in our language, we have to use different words to call an older person. it won't be like we're friends anymore. it seems like she'll be disappointed. i tried to find what she knows about my age, and i didn't say anything when she said that we're only a month apart 2 times.
i have ocd and i got headaches and other stuff with pain when studying with her, but i don't want to tell her.

To be frank, I really just do not think it makes much of a difference.