Thank for asking to HCM
I really appreciate your concern, the given history is suggestive of intestinal infection and the possibility of protozoa infection is very likely stop taking "Isabgol" do not exert any force at the time of defecation, if I would be your doctor then I would treat you with the following treatment.
1) Tab Metronidazole
400 mg twice in day for five day
no need to worry about this it would come around soon take care and have nice day.