Each person may experience symptoms of anaphylaxis differently. The most common symptoms include:

• Respiratory system: chest tightness, shortness of breath, wheezing, throat tightness, cough, itchy mouth/throat, nasal congestion
• Cardiac system: low heart rate, pale/blue color, dizziness, low blood pressure, lightheadedness
• Skin and mucous membranes: hives all over body, swelling, itchiness, redness, itchy/watery/red eyes
• Gastrointestinal system: nausea, vomiting, diarrhea, stomach ache
• Other symptoms: anxiety, feeling of “impending doom”