Thanks for writing your query.
Change of diet pattern should be gradual and moderate.
Eating four hard boiled eggs at a time can give excess load to your digestive system.
Carrots give the roughage to the stool and can result in increase in the motility of the intestine.
Iron can also alter the bowel movements.
All the above factors can result in pain in abdonmen and diarrhoea
You should take light meals for a day or two.
20 mg once a day along with antispasmodic like Dicyloverine can be taken for pain relief.
preparation containing pepsin
and fungal diastase will help in digestion.
If the problem persists, get yourself examined medically.
I hope this is helpful to youu.