My daughter who is finishing a residency program will be visiting several hospitals in the coming months so I encouraged her to get a seasonal flu shot. She got it yesterday morning and after lunch started feeling nauseous. Early this morning she was vomiting and had two episodes of extreme stomach spasms that made it difficult for her to breathe. She called me in the early hours (I'm in VA and she's in FL) and I told her to call 911 but she was reluctant to do so thinking things would calm down and they did after about 1/2 hr.
She called the nurse who administered the shot and was instructed to call the CDC and report her reaction. A rep from the CDC said that some people are exhibiting breathing problems, allergic reactions, hives, etc. My daughter was told that she probably shouldn't receive seasonal flu shots in the future due to her reaction.