Nausea and cold chills after eating: what should you know?

Chills can happen with fever or another body stress signal. Nausea, cramps, diarrhoea, and vomiting after food can occur with food poisoning or gastroenteritis. A urinary tract infection or kidney infection may cause chills with burning urine, frequent urination, or pain in the back or side. Cough or breathlessness can accompany influenza or pneumonia. Sepsis is an emergency when someone is very unwell. A meal-related episode can also occur with low blood sugar or a food allergy, especially with swelling, hives, or wheezing.

Check your temperature if possible and rest. Take small sips of fluid and avoid the suspected food until assessed, particularly if the reaction was immediate. Keep packaging or record ingredients, onset time, and other people affected. Do not drive if faint or confused. If you have diabetes and suspect low blood sugar, follow your personal plan and seek help if symptoms do not improve.

Call emergency services for breathing difficulty, throat or tongue swelling, fainting, confusion, blue lips, severe weakness, or rapidly worsening illness. Seek prompt assessment for persistent chills with fever, severe abdominal or back pain, repeated vomiting, inability to drink, very little urine, or a new rash. Do not assume a meal caused the problem if chills continue.

Share meal ingredients, symptom timing, temperature, bowel or urinary changes, cough, rash, medicines, diabetes history, and recent sick contacts. Ask whether allergy testing, infection assessment, or glucose review is appropriate.