White boxer dogs

I have a white boxer. She is a sweet little girl and full of fun. She is very nervous of anything new. When we open an umbrella she seems frightened and in the street on walks she hates the sounds of motorbikes and panics. She does not like metal feeding bowls if they make a noise.

Has anyone out there found the same with their white boxer?

She is one year old and still pulls on the lead so she takes us a walk!!

Are breeders still putting white boxers down after birth ? - they make lovely pets very amusing and loving.