I'm about 26 years old. I don't know my day of birth. I just know I was born in 1992 in either October or November, because I know the birth date of my cousin who is around 1 month younger than me. My parents never wrote my birth date anywhere. I was born at home so there are no written records. All my documents have a fake date, May 20th. Honestly, I don't like this date. October seems more realistic to me and hence I respect it more. Most of my friends know about both dates and this truth.
I want to share my happiness in my real birth month (October) on a specific date of my choice.
On social media, I've already published my date of choice in October. My friends (except my new colleagues, so it's more about new people I meet) seem to respect that, they wished me happy birthday on this date. Yet I feel embarrassed every year. I try to hide myself from October and May months, as I feel my friends will troll me for this by saying you have 2 birth dates in a year!
I want to tell my colleagues to celebrate my birthday in October, but I'm afraid they might feel I'm not being serious about it, that I'm manipulating my date of birth or be critical of me choosing a date that's not the one in my docs.
I'm willing to explain the true reason for picking October to celebrate my birthday, but it doesn't seem good to explain every person I meet the same story as it would seem tedious.
Given all that, how do I effectively explain to my colleagues that they should wish me a happy birthday on a different date?