Can your hair become wavy/curly naturally after 3 decades of straightness?

[tigana]

Because recently after leaving my hair to dry naturally after washing ( as I usually do) I have woken up with wavy hair (proper wavy, like a very loose perm-ish).
I have always had straight hair (with a slight kink at base of skull).

What is going on? Am I sleep-perming??

lol me too, i look like kath from kath and kim in the morning

Is very strange.
30 years of straight hair, then suddenly...
Mind you, the waves brush out and don't come back until I wash it again

Mine went wavy when I was about 25....

Yep, after I had dd my hair now goes curly and wavy depending on the weather, used to be straight as a dye.

Wavy-hair-virgin question...
How do I stop the waves disappearing when I brush my hair?

I used to have poker-straight hair. went wavy during pregnancy, and never went back

Don't brush it. Just put some texturiser on it.

...but if I don't brush it how will I get rid of the messy birds-nest bit first thing in the morning?

Since having DS2 I have a very odd very frizzy section at the back of my otherwise poker straight hair

blow dry it straight in the morning