But have u done exercises with ur neck...do u move it several times a day ?
It could be calcium deposits...or some form of bone that is protruding....
ROM is range of motion....how far u can look left, right and up and down....
EDS is a connective tissue disorder...it can cause allergies and sensitivites, fragile skin, joint pains and subluxations and dislocations and hypermobility.
We do have a EDS group that had more info ....
http://www.medhelp.org/forums/show/417?camp=msc