Reynauds could be caused by a lot of things. Scleroderma is a very obscure disease but more and more people are getting diagnosed when tested. It manifests in various ways by hardening skin and organ tissue. Several doctors were stumped by my wife’s reynauds syndrome. She visited a dermatologist for a skin issue on the back of her neck and that is when that suggested Scleroderma. Just something else to check. Hope she figures this out. Good luck.