FOOD poisoning or unhygienic protocol

Good day, just on the 27th of july I ate at wimpy at ushakamarine world,I have lovely service from the place but sadly I have to inform management that they selling contaminated products to clients meaning food poisoning ...when I came back from wimpy I had a very high fever and a bad stomach cramp that 2 days later which is today it resulted to blood stools that I had to be rushed to the doctor.i spent so much as the doctof stated I picked it up from food or a beverage.please kindly get back to me as I am in great pain and now I have to heal from continuous diarrhea and I didnt have medical aid to cover the cost it's sad cause it has such lovely service but the food caused me problems,I ate a big cheese burger with a large Sprite and I'm not sure if it's your utensils not cleaned properly or what but please get back to me as it serious and I'm bed ridden..thank you