So a little bit of context, My hair used to be straight however at the end of high school it started getting really curly and has been curly ever since, I don,t ever use any products to make my hair look more curlier etc, However recently my hair has been changing I don,t know why this is so I came here to get some advice, as I have really liked my curly hair and don,t want to loose it, has this happened to anyone or could there be a reason why this is happening?

Pic 1: Is of a year ago as I don,t really take that many pictures, but this is how my hair looked like a month ago before it started changing. http://imgur.com/gallery/q8xoFzJ

Pic 2: Is what took today and this is how it looks.

http://imgur.com/gallery/v5uzP6a