Sly Saint
Senior Member (Voting Rights)
Having cold hands and feet is a common problem with conditions like fibromyalgia (FMS), chronic fatigue syndrome (ME/CFS),12 and Raynaud's syndrome.3
What Is Raynaud's Syndrome?
In Raynaud's syndrome, the blood vessels constrict more than they should, which reduces blood flow.4 That not only makes your extremities cold, it also makes them difficult to warm up. The most commonly affected body parts are the fingers and toes, but your lips, nose, ear lobes, knees, and nipples may also be involved.5
Raynaud's isn't all about the cold, though. The diminished blood flow can cause pain in the affected areas, and it may also make the skin appear blueish. Skin ulcers (sores) can occur as well since low blood flow can damage your tissues and impair healing.6
Episodes of increased symptoms, described as attacks, are often triggered by things like exposure to cold or high levels of stress. An attack may last for just a few minutes or could go on for hours.7
For some people, Raynaud's syndrome is a primary condition that doesn't accompany another illness. And sometimes it's a secondary condition that results from another illness.3
Raynaud's is also common in lupus, rheumatoid arthritis, and Sjogren's syndrome.
We don't yet know what causes Raynaud's syndrome and there is no cure.8
Your doctor may also consider the possibility that you could have secondary Raynaud's syndrome.
And since FMS and ME/CFS can also cause cold fingers and toes, you might have tests that are used as part of the diagnosis of FMS or part of the ME/CFS diagnostic process, if your history and physical exam suggest that you could have one of these conditions.
They include:6
https://www.verywellhealth.com/raynauds-syndrome-chronic-fatigue-716185Raynaud's in Fibromyalgia/Chronic Fatigue Syndrome
We don't know exactly why Raynaud's is common in people with FMS and ME/CFS. An association between FMS and digital microvascular dysfunction (diminished blood flow in the fingers and toes) suggest that symptoms of Raynaud's in FMS may be caused by different mechanisms than those seen in primary Raynaud's or secondary to autoimmune conditions like scleroderma.9
Raynaud's symptoms may aggravate certain symptoms of FMS and ME/CFS, which often involve temperature sensitivity. Exposure to cold temperature can cause pain for someone with FMS/ME/CFS and may, in some cases, trigger a symptom flare.10