What would make your hair go really dry/breakable/flakey scalp in the space of 2 weeks?

[toffeeapple]

Is it the menopause? I'm only 33!

Loads of things....hair dye, vitamin deficiency, dehydration, too much sun/wind exposure, chlorine, thyroid problems....do you have any other physical symptoms? if so it might be worthwhile seeing your GP for a check up.

I've had a thyroid test not long ago and no other symptoms, but thinking about it, I have been washing my hair twice a week instead of once. Maybe it's that