Recently about 80% of my lovely shiny poker straight long dark hair fell out due to severe anaemia. It’s starting to grow back now, but for the first time ever in my life it’s growing with a very definite wave/curl! And the texture is quite frizzy but not sure whether that’s because of differering lengths of hair. Is it normal for straight hair to grow back curly or any reason why it is and a way to get it to grow straight again? I’m nearly 48... I don’t have the motivation to deal with a whole new hair thing!