How to cure diarrhea? Does my problem has something to do with food poisoning?

I'm having fever since on Thursday and the doctor had given me an antibiotics. I'm having diarrhea since on Saturday and it's getting worse. On Saturday morning, i had a burger for breakfast cause i didn't feel very well and that burger my mom bought it on Friday's night. My body is feeling very weak now, i have no strength to climb up the stairs nor running. My stomach is always grumbling and i went to the toilet more than 5 times a day.