Maybe be appendicitis, mesentric lymphadenitis etc...you need to consult nearest surgeon for clinical examination and for relevant investigations they will do the needful... If you lack enough
fiber in your diet, your stool can become stagnate, dry and hard.
Increasing your fiber intake will help promote soft and bulky stool.
Foods that are fiber-rich include beans, fruits, whole grains, beans
and vegetables. Increase Liquids
An inadequate amount of liquid in your diet can cause your stool to
become dry and impacted...Consult surgeon if no improvements