I noticed that somehow my gmail adress has subtly changed from "somethingexample@gmail" to "something.example@gmail". I never wrote it with a dot before, nor I have edited it as far as I remember. I tried messaging myself and I've seen google ignores the dot, for all purposes both adresses are one and the same... But it still appears with that extra dot in my "profile" and as sender in the mails I send.

Does anyone know why has this happened?
I don't have a real problem with it but I sure don't like Google doing weird things without my consent