A generalized muscle tenderness and aches would go more in favor of
fibromyalgia. However, in your case the
pain in only in arms and legs.
Fibromyalgia cannot be ruled out. You must however look for causes of peripheral neuropathy like those associated with diabetes, hypothyroidism, chronic involvement of liver or kidney, chronic alcohol use.
Vascular pathologies like atherosclerosis, deep vein thrombosis too should be ruled out.