I used to have curly hair?

I'm a 19 year old male who has had thick curly hair all his life but recently my hair has gotten straighter and thinner can anyone explain this?

I used to have curly hair?

You are just growing out of Puberty, don't worry about it, happens with age, Body changes and the like.

I used to have curly hair?

i don't know why but it is common

it has happened to me

I used to have curly hair?

Maybe you drink too much Coca-Cola :D