Yes, if I got your timeline correctly it seems to have been both stress responses but later also healing peaks among your bouts of diarrhea.
You could draw a timeline when the conflicts happened and when the diarrhea came to be sure about that.
In healing peaks, we are reminded of a stressful situation both by the physical symptoms but often also by psychological ones like bouts of anger or panic, because the same energy is released.
Does that make sense?