I've been re reading many of the posts on here over the last few days and I did notice that along with the rls there are quite a few people who, like me, have or have had a mental health issue at some point.
It may be that having rls makes you so miserable that you end up having serious depression and also the lack of sleep will of course not help! But mine wasn't due to that as the rls was very mild back then and not causing me any real problems.
So I googled Iron deficiency and mental health. There's a lot of stuff on it quoting studies that have concluded that there can be and often is a link.
One of the things that jumped out at me was the possibility of a link to Autism and Aspergers syndrome. Many studies show that people who suffered with these also had low iron levels/ anaemia Well that was a surprise!
I have a great nephew who has just been diagnosed with autism, hence my interest. Two of my brothers and one niece have mild Aspergers and another niece has mental health issues from not being able to get help for the 'growing pains' she suffered with since a baby.
I don't know how this can help my brothers as neither suffers with rls but my niece is only 35 and I would guess she has a chance of showing symptoms in a couple of years when she will be the age when I started to suffer.
This is a bit rambling as I'm really just thinking on paper, so would be interested on others take on this?