Is it normal to have diarrhea after every meal especially in the morning for about 8 months?

Not normal, but comm. It is quite common these days because this is a frequent symptom of irritable bowel symdrome, which seemingly is on the rise, more often females than males. Also, if you have bloating/flatulence, cramping, early satiety, indigestions etc..Then more likely so. Chronic giardiasis may do same, but often foul smelling. Celiac may also be the cause. Consult your doc for eval/treatment...Good luck.