Milkshake-Suspected Illness - Five Guys, Potsdam New York

79 Market Street, Potsdam, 13676 New York, United States

Suspected food poisoning. Symptoms: Vomiting, Stomach Pain, Cramps, Chills, Headache
Suspected source: I had a milkshake, and a burger, from here. Nothing I had earlier in the day usually upsets my stomach. I'm starting to think mine was bad or something. My dad got the same thing and didn't get sick.
Onset: It started at about 7 or 8 PM. I'm not sure to be exact though.
Duration: It's currently 1 AM and I'm still throwing up quite a lot.
Sick: Just me.
Additional information: All I know is that I felt like the milkshake did taste a little off, maybe I was being a little bit too suspicious. I don't know but something in my gut told me not to get a milkshake when I walked it because it wouldn't go well. However, I still ordered one. I could sense something was off but I wasn't sure what. | Symptoms: Vomiting, Stomach Pain, Cramps, Chills, Headache