Not food poisoning but I got an infection from swimming in the pool. There were many children in the pool. I swam laps in the lap lane. The next day I came down with an upper respiratory tract infection. Yellow mucous, mild fever. It spread to my chest. I was prescribed antibiotics. It’s been 1 week and I am still coughing up mucus but the worst is over (coughing fits, stuffed sinuses, sinus headache).