I have recently discovered that my feet can become quite cool when I'm sitting, but when I look at them, they are bluish along the soles. My doctor says it means the blood flow isn't what it should be, & if it's just caused by the pressure on the back of my thighs (when I'm sitting in the chair), that it isn't serious..but he is arranging for vascular imaging. I do have pins/needles in my feet & lower legs, & I'm wondering if vascular
insufficiency could contribute to the pins/needles or even be the cause?