Yes, it is entirely possible to have a nut allergy without experiencing anaphylaxis, which is the most severe and life-threatening form of an allergic reaction. Nut allergies exist on a broad spectrum of severity. Many individuals experience "mild to moderate" reactions characterized by symptoms such as hives (urticaria), localized swelling (especially of the lips or face), itching of the mouth or throat, stomach cramps, nausea, or vomiting. In some cases, the reaction may be limited to "Oral Allergy Syndrome," where the person feels a tingly or itchy sensation in the mouth after eating certain nuts. However, medical experts emphasize that a past mild reaction is not a guarantee that future exposures will also be mild. The immune system's response can change based on the amount of allergen consumed, the person's overall health at the time, or even exercise and alcohol consumption. Because nut allergies are notorious for their unpredictable nature, most doctors recommend that anyone with a confirmed nut allergy—even those who have only had mild symptoms—carry an epinephrine autoinjector (EpiPen) as a precaution, as anaphylaxis can develop rapidly and requires immediate emergency treatment to prevent life-threatening complications like airway closure or a dangerous drop in blood pressure.