Food Safety Report: Long John Silver's, West 7th Street, Joplin, MO, USA 7 months ago • details 11 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting Suspected source: Long John silvers Onset: Less than 4 hours Duration: Less than 4 hours Sick: Me Additional information: I got green vomit after eating long john silvers.