Stomach issue, Food Poisoning?

[Bonobojt]

A few days ago I woke up feeling very low on energy and had a headache, fever, and my stomach felt dodgy, took tylenol for headache and fever and felt better next day, took charcoal pills yesterday and thought today my stomach was better but after I started to eat my lunch I felt nausa, and thought I was going to throw up, but I didn't. I've had slight mini episodes of diarrhea but nothing crazy. A woman who's a pharmacist I met told me to take Disento and then 2 hours later take charcoal. 

 

But when I went to the pharmacy they only recommended Charcoal or Gastro Bismol, so I kind of need some help on this, not sure what medicine to take.