weird looks when singing in church feel embarassed?

I attend every sunday my local small parish church. I have started to notice that other members of the very tiny congregation that never ever numbers more than about 15, are giving me weird looks when I am singing during the hymn part. I have really started to feel embarrased by this, I have started to think whether it is the way I am singing, I am a woman and I prefer to sing in a quiet operatic voice as that is how I like to sing and like my voice to sound. I think that is why maybe I get these weird looks from other people in the church, do you think I should change my tone of voice to perhaps a no opera tone, or carry on in the current opera tone.? any help please, any church people prefably?