Allergic reactions trigger certain chemicals to be released into the body. Histamine is one of them, and histamine also happens to be a neurotransmitter. It is possible that one of the side-effects of a lot of histamine could be panic. Also, if you take Epinephrine (EpiPen) at the onset of the reaction, it is possible the panic is a side-effect of the drug.
Gluten & Sulfite Sensitivity, Multiple Food & Inhalant & Medication Allergies, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD (Lupus?), Osteoporosis, Anemia, Very Low Lymphocyte Counts (T-Cells & B-Cells), malabsorption/malnutrition, etc.
Meds: Pulmicort, Injectable Vitamin B12, Herbs, Nutritional Supplements, Essential Oils, Homeopathy.