Bad chicken

So disappointed in the chicken I bought at Pick n pay Waterfront Cape Town. On Tuesday morning I decided to get "fresh" grilled chicken... That was a mistake its like it was expired chicken... Up until this day my stomach has not stopped cramping and pains everytime. Half an hour after I ate it I had to go to the bathroom and that was the case ever since. I had to go to the pharmacy to get something to atleast help... This is so bad since I always buy stuff by them when im closeby... Im disappointed and had to spend money at a pharmacy just to get my health balanced... And im still not 100%