For many years I have had tachycardias, a feeling of being ‘unplugged’ (as if my heart had stopped, blood pressure rapidly falling and I was going ‘out’) and inexplicable cold in my hands and feet like ice even in the summer. And the same thing on my nose. It turns bright red at times for no reason as if the capillaries dilated and it remains that way for a long time - it burns as if it has been held on the stove. Since changing my diet, my nose is normally coloured, I am nice and warm all over and no one has been ‘pulling my plug’.  It seems that food chemicals affect my vascular system and blood flow. – by email