@puravidaville!!!!! I just read this and so much of this sounds familiar. My youngest daughter who is gluten/dairy/sugar free, has beaucoup allergies and life threatening asthma has has these hives as well. In her case Allegra is the allergy med which helps with the hives. It is called Urticaria and can be attributed to physical changes in the environment pressure/cold/heat or stress/anxiety. Originally the hives would happen in the gym when she would work out. But she has even had them when outside in cold weather. Taking allegra has definitely lessend the frequency of occurance. Staying gluten/dairy and sugar free has really helped her. I am so sorry you are faced with these crazy symptoms, it has to be so stressful while you're traveling. I'll be praying for you!!!! xx God bless you guys!