My Daughter (16) Woke Up With Severe Nausea 2 Or

My daughter (16) woke up with severe nausea 2 or 3 mornings ago. Thankfully no vomiting
This morning loss of color-skin was grey, lips grey as well. No dizziness, but episodes of losing consciousness. Described as "every thing turned black". This was accompanied with slight bleeding nose.
Temperature was not stable. At first, complained of being too hot, then shortly thereafter skin was cool to the touch, all the while no change in color of skin. Pallor continued through rise and loss in temp.