I have naturally brown eyes and blonde hair but people tell me that is impossible?

People tell me that I am fake because my eyes are brown and my hair is blonde. I have had numerous people tell me to stop lying because it is impossible for the allele of blonde hair to match up with brown eyes. I swear it is natural on me and I have pictures from when I was little to prove it. My hair is much darker now but it is still blonde. My eyes have a dark dark green ring around them but it is nearly impossible to see even up close. They range from almost black to honey yellowish brown in different lighting and sometimes the green comes out a bit but very rarely. Most people don't even believe i even have any green in them. So, is it really impossible to have brown eyes and blonde hair naturally and if so how do you explain me?