Fever, No Appetite, Headache, Vomiting After Eating Packaged Sandwich. Is This Normal?
Thanks for posting this query.
The symptoms that you report – fever; headache and reduced appetite seem related to an infection and not food poisoning.
Since you felt the symptoms immediately within 15 minutes after a packaged sandwich, it is less likely to be related to sandwich; as minimum time of incubation period is atleast 4-6 hours (symptoms of infection start after incubation period).
You have need medical attention at the earliest. A detailed physical examination and relevant blood test such as complete blood counts, urine routine and cultures are warranted.
Hope this answers your query. Let me know if I have missed out any of your concerns.
Do accept the answer if you do not have any further queries.
Wish you speedy recovery.
Regards