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Why do I get lightheaded in even mildly warm environments, and then my fingernails turn blue and feel ice cold if cool?

Posted by Lainie

I am a healthy 42 year old female.  I have a history of low blood pressure - which has improved some with age.  My doctor doesn't know of a connection with feeling lightheaded every time I am slightly warm.  Summer is the worst time for me!  On the opposite end - my hands feel like ice and my nails get a blue tint if I am even slightly cool!

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