I still have diarrhea though other symptoms of food poisoning stops. Why?

Hello doctor,

I am a 23-year-old female. Last Friday I got food poisoning, at least I think it was that. It appeared within an hour of eating mushrooms and chicken with stomach aches. I got diarrhea, stomach aches, headaches, some fever with chills and sweats. Today the only symptoms I have left are diarrhea that is still rather liquid but in small quantity and stomach aches sometimes. Only I noticed today there was a yellow liquid on the toilet paper and it got me really worried. I have only been eating rice and a little bit of bread and drank plenty of water and tea. Today, I stopped drinking tap water just in case there was something in it, and I feel I had much less cramps in the stomach than yesterday. I do not have any other symptoms anymore, I feel rather fine, the liquid does not hurt (although I got some hemorrhoids because of diarrhea) but the color is scaring me and I have no idea what it is, what I should do about it and if everything is normal? I am Antigone for more than two years. I took some Doliprane 1000 (Paracetamol) Friday night and Sunday night. I took a Spasfon today around noon.