Lithuanian Brothers

There has been one thing starting to happen in my life that I'm incapable of explaining to myself. I have got used to the fact that, when going abroad, people will guess me belonging to any possible european nation besides Germany. However, now something even weirder is happening:
The older I get, the more people try to help me to Lithuanian elder brothers... By now it has happened twice and that might still seem acceptable and nothing special. However, the thing is: if my 'brother' is an only child it is still ok, but since yesterday I'm supposed to have even more siblings that I have never met in all my life cause my 'new' brother has 3 more brothers who have more --- what?!?! I guess for some people this seems a normal thing to be happening, however I find it slightly weird and spooky.. (I have to admit, I always wished for an older brother, somehow all that whishing must have gone a bit over the top..) So I'm currently thinking of setting up some self-help group like 'Anonymous-Unexpected-Foreign-Brother-Havers', abbreviated 'AUFBH', so if anyone has a similar problem please contact me. Have a nice day :)