Our daughter was the first to go into anaphylaxis. It happened one day at school in May, just a few months after she had been diagnosed, and six months after our son had. The only things she did was walk down a hall and briefly pass under an air conditioning vent that was blowing. This made me watch our poor daughter like a hawk. I was petrified this would happen again, and to be completely honest, so was she. She still remembers the feeling of her throat starting to close and having a hard time breathing, she remembers how scared she was and I seriously doubt those memories will ever lighten for her. A few months later, due to symptoms our daughter had for a very long time that other doctors had dismissed, I took her to see the doctor who handles my hypothyroidism. I was not surprised to find out that our daughter was also hypothyroid.
During the years, our daughter has never had another anaphylactic reaction, but our son became worse. He skips over anaphylaxis and goes straight into shock; hopefully you aren't as surprised as I was to learn that can happen. This has happened over the past 3 years about 15 times. I figured this must just be how it was, and thanked my lucky stars that our daughter had gotten better and waited for the time our son would follow in his sister's severity footsteps. But one night at the end of this school year, I couldn't sleep and rather than have a google binge, I had a lab binge on my son. I felt there was something that I had missed, and poured over lab results trying to find something, knowing I probably wouldn't. But on lab work from 2010 I was shocked to see that they had only ran one test on a very important panel, omitting others that should have been run as well . While they "tested" our son for a thyroid problem, which is know to cause Cold Urticaria, they only ran his TSH. This really upset me, because TSH is a pituitary hormone, and does not tell you a damn thing that is happening in the thyroid itself. To get the full picture, you need to have a TSH, Free T4, Free T3 and antibodies. I REALLY want to you remember that, because with the info I found out today, it is extremely important.