I actually do not recall the technical term for this, but I experience it regardless of the context of the needle involved. I have had cartilage piercings in my upper ear lobes and my nose pierced; any level of injection, no matter how painless, causes shortness of breath, dizziness, and 98% of the time, fainting. The scent of sterile instruments or the sound of medical gear being unwrapped can start the process off (even if I am about to have a procedure in which no needles are involved). The only time I have been able to overcome this was when I got a tattoo. For some reason I don't get to the passing out point. Has anyone actually over come this or I get to be the lady in her thirties passing out from a flu shot (if I get one at all!)?