Hello there I understand your concern... There are many causes associated with pain abdomen and yellow urine...yellowish urine passage suggestive of jaundice...other possible causes are,renal stones,constipation,pancreatitis, mesentric lymphadenitis etc... It may be muscular as well... So cause must be evaluated in detail...consult nearest surgeon for clinical examination and for investigations like ultrasound abdomen and pelvis etc...Consult them they will do the needful