Do not confuse a wheat allergy with celiac. Although you must avoid wheat in either case, these two health problems are fundamentally different in two ways. One is the underlying problem. Celiac is an autoimmune disorder, not an allergy.
An allergy to wheat seems to be increasingly common, increasingly diagnosed, or both. Certainly, it is one of the top suspicious foods if allergies are suspected.
Managing a wheat allergy involves avoiding wheat in your diet. This can be quite complicated at first. It is much easier if you know how to cook (or learn how). You must also check all ingredients of very prepared food you eat, and watch what you are served at friends’ houses and at restaurants.