Causes of Raynaud's disease
The exact mechanisms behind the disease are still unclear. As for its triggers, simply entering a cold region, opening the freezer or putting hands in cold water can set off symptoms.

For some people, stress can set off an attack without an associated drop in temperature.

There are two types of Raynaud's disease, known as primary and secondary. Primary Raynaud's is most common and occurs without a secondary medical condition being present.

http://www.medicalnewstoday.com/articles/176713...

Aw right Martin thanks for the reply , hope you are keeping well x

I've got Raynards but I don't think it affects my c.o.p.d. its the cold weather that makes me gasp for breath so I always wrap up when going out in winter