What Causes Hot Flashes, Dizziness And Light Headedness With Dark Rings Around The Eyes?

I have an almost instant spike of high temperature you can see my face flush I become, dizzy, shaking, light headed. Followed by throwing up, normally when just standingdoing nothing. Along with it I will during this get black rings under eyes that go away when symptoms d, also bruising tthat shows or spreads during them.