A member asked:

I've donated blood 7 times. each time i get a more severe reaction of hot flashes, goosebumps, light-headedness, and nausea. this time i passed out.

A doctor has provided 1 answer

Vasovagal response: Some people have this response to blood donation or seeing blood from themselves or other people. It can be normal if it only happens with blood donation.

Answered 9/4/2014

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