Food Safety Report: Humm Blackberry Kombucha, Woodland, WA, USA 2 years ago • details 5 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Chills, Headache Suspected source: Not sure Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: Possibly came from Humm Blackberry Kombucha