Genealogy / The last name is Krzywoszyja. Help? Am I Polish? [30]

Hi !!
I'm 100% sure You are my family.
My name Grzegorz Krzywoszyja I'm 56.
My father Zygmunt Krzywoszyja
My grand father Bronislaw Krzywoszyja -> his brather by Germany pest WW2 was emigrate to Australia.
Hi has like Bronislaw sons with same name ->Kazimierz, Zygmunt, mey be Michal.
Zygi Krzywoszyja some times mailing me.
All the best for You and Your Family.
Grzegorz
sp3jgv@op.pl