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Symptoms of an allergic reaction to wheat include swelling, itching or irritation of the mouth, skin rashes, nasal congestion, headaches, vomiting, intestinal cramping, diarrhea and, in severe cases, anaphylaxis, accordi... More »

As noted by Mayo Clinic, common wheat allergy symptoms are itchy eyes that water, an itchy rash that may include skin swelling, mouth irritation and swelling, nasal congestion and headache. Severe symptoms that may be li... More »

Gas, stomach pain and bloating are the most common symptoms of lactose, or dairy, intolerance, states WebMD. Wheat allergy symptoms in adults are diarrhea and heartburn, while children can experience histamine reactions ... More »

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Symptoms of a shellfish allergy can include hives, itching of the skin, abdominal pain, diarrhea and a tingling in the mouth, according to Mayo Clinic. For severely allergic individuals, symptoms can also include swellin... More »

As noted by Mayo Clinic, common wheat allergy symptoms are itchy eyes that water, an itchy rash that may include skin swelling, mouth irritation and swelling, nasal congestion and headache. Severe symptoms that may be li... More »

An allergic reaction to almonds can produce mild symptoms, such as a slight tingling of the mouth shortly after ingesting almonds, to a severe systematic and life-threatening reaction, according to Food-Info. Severe almo... More »

Symptoms of allergy headaches include any headache accompanied by itching, sneezing and a runny nose, which is symptomatic of hay fever or seasonal allergies, according to the American Academy of Allergy, Asthma & Immuno... More »