Salmonella enterocolitis is common with bad cooked chicken.
but it shouldn't last that long.
I have had myself similar symptoms 6 month ago, while fever,nausea alleviated after some time I 'm still dealing with distension stomach and gas and loud sound bowel....
I ll keep you posted if I found out what' s going on since we maybe have same problem who knows ?
I experienced by intermittence all the symptoms u listed