Hey today i fell in a river, a dirty one with rotten fish everywhere, and i swallowed a fair amount of water, will i be ok? qua bacteria and stuff

Probably low risk: This certainly sounds unpleasant, and there may be a risk of infection, especially if the river is contaminated with human waste. But most such events don't cause any problem and there's not much that can be done now. Be on the alert for symptoms like nausea, vomiting, and diarrhea. If none of these in the next few days, don't worry about it.