Why did i pass out and almost throw up after getting cortisone shots in my hands?

Allergy: It could be an allergic reaction. Make sure to tell the doctor that administered these shots. Feel better

Fear, pain: Many people have fear of needles. Also, depending on whether your clinician used any pain-control methods during the injection, the injection could be very uncomfortable. I suspect these are the likely causes of your passing out. This is not an unusual reaction, by the way. I hope that helps.

Just a....: Normal response from the autonomic nervous system that can be affected by the discomfort ot the shot, or fear or nutritional status (blood sugar level) at the time.

Vasovagal episode: You likely had a vasovagal reaction. A vasovagal episode occurs when your body overreacts to certain triggers, such as needles or the sight of blood. This is likely a harmless condition in your case and requires no treatment.