I've wondered for a while whether RLS is a single condition, or if maybe the people in our group have a range of unrelated conditions but RLS seems to be the "best fit" term that "sort of" covers their condition and that the same medications may help most of these nerve related conditions.
The one thing that seems common to everyone is that moving the limbs can help - or at least "mask" the problem, and more specifically, those movements are voluntary, or at least semi voluntary - totally uncontrolled limb movements and jerks imply different disorders such as PLMD (Periodic Limb Movement Disorder).
But aside from that, you hear a wide range of symptoms that make me wonder... For example, while I have been diagnosed with RLS, its not just my leg, it involves my trunk and arms, and at its worst my head. And (almost) exclusively on the right hand side only. I don't get "tingling" under the skin, or an "antsy" feeling as you sometimes see described - my skin and "conventional" nerve receptors play no role in my RLS. What I experience can come on suddenly - almost like an electronic "buzz" - that I feel throughout the right hand side of my body. And from that point on I get uncomfortable sensations in my legs, body and head - even my jaw and brain - that I can't - even after years of trying - describe in words. The discomfort is not entirely "physical" but almost in some twilight zone between physical and mental. I'd much rather have conventional pain than this! (Within reason of course).
Does anyone recognise what I'm (very poorly) trying to describe? Or is your RLS completely different, and therefore, possibly, a different condition altogether?