I've had this for a while. Assumed it was due to having highlights, so stopped colouring my hair but it has got worse. My hair, already fine, is either breaking off or falling out (I can't tell which) once it gets to two inches long, so beyond this it is thin and wispy. Horrendous! I have chopped it, as there was nothing else to do, but what can I do to improve things and why is it happening? I have an underactive thyroid, which caused thinning, but my levels are ok at the moment. I am peri-menopausal, probably getting to the stage of periods stopping soon as they are spacing out and much lighter. (So would HRT help?) My iron is on the low side, I'm taking extra. Anyone used Nourkin tablets? I was just looking at "hair loss" on the Boots website and they came up. They are really expensive - i don't want to waste money if they don't work.