yea unfortunately others can see the alters that are inside so they cant respect having more than one birthday...but I do have a few friends that solved this issue...

as the body birthday rolls around be the first one to mention it by saying something like wow my birthday is coming up I think I am going to wait and celebrate it on this day and month because I like springtime better than winter, maybe even have a pool party or outdoor party, if you could celebrate your birthday at any time of the year and day when would it be?

this changes the conversation from focusing on the dreaded birth date to getting other people to talk about their birthdays and celebrations in general sometime in the future..

example my siblings birthday is on christmas day of all things. he has had to like a life of christmas presents doubling as birthday presents. he has chosen to have 4 birthdays a year to compensate. he plans his own party every 4 months, sends out party cards, decorates the whole works. and calls them do over parties. Each party centers on an age where friends and family know to bring a new toy for that age, then he donates those toys to community organizations. its my siblings way to celebrate his birthdays outside of the christmas season.

maybe you can find a way to have your special days too in the ways that you want, thats the joys of being an adult you dont have to celebrate your birthday on your body day, there are ways to get around this and make it memorable so that others outside your body will instead talk about other things. be creative, pick your days and plan for them, get other people involved in the planning and enjoy your chosen days, when others see how happy your chosen days are and your plans they may surprise you and forget the body day like they have my siblings and ask instead whats your next party going to be like, can I help..