Hair suddenly becoming really dry.

[toffeeapple]

I've noticed that for the past 1/2 weeks or so my hair has become really dry when it's normally really well conditionned.
I can't think of what I've done differently a part from the fact that I've had a dodgy stomach and I didn't eat properly for about 3 days (mainly steamed rice and plain food and not a lot of it).
Any one had that before?

Only when pregnant

Blimey! My period is due any minute so I don't think it's that!!
Funnily enough it did cross my mind for a split second but quickly got it out of my mind.

I know I've thought of something, is it because I need to change my shampoo? I tend to change every now and then I switch between H&S and Timotei but I've stuck to timotei for a long time this time and washed it more often (twice a week rather than once).
Any hairdressers to confirm that?

Also when I described it as dry it's more like... I don't know, compact looking IYSWIM, all moving at the same time, rather than kind of supple when you move your head.