Your skin freaks out.
Think: feeling itchy, breaking out in hives, or even an eczema flare up, which causes red, swollen patches of skin to pop up, usually on your hands, feet, and joints.
If you notice any red, swollen, or itchy spots on your skin after eating, or if the area around your mouth looks red, it might be a reaction to something on your plate.
Your pulse gets weak.
In some cases, a food allergy goes more than skin deep. According to FARE, changes in your blood pressure—like a sudden drop or a weak pulse—can be the work of an allergic reaction. Unless you're taking your blood pressure at every meal, though, you probably won't know if there's a dip. However, if you're feeling faint or have a weak pulse, that can be a sign.
Like any allergic reaction, this symptom can go from slightly concerning to serious very quickly, so if you're feeling woozy, don't just brush it aside.
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