Hair!

Until I hit puberty my hair was pin straight. After puberty it became kinky curly! That was when I was 11. I am 18 now and my hair is becoming straight again! I recently chopped off 6 inches of my hair in hopes it'll coax the curls to come back, but it's just become straighter! ? has anyone had this problem? Like where your hair changes textures drastically!? Thank you :)