​Differential diagnosis of generalized abdominal pain

​Differential diagnosis of generalized abdominal pain are : 
-gastritis
-black widow spider bite 
-familial Mediterranean fever 
-acute intermittent porphyria 
-Henoch –Schonlein purpura 
-polyarteritis nodosa
-iron toxicity 
-lead poisoning 
-adrenal insufficiency 
-tape worm 
-Giardia 
-Strongyloides
-Ascaris 
-uremia 
-hypercalcemia 
-diabetic ketoacidsosi 
-abdominal aortic aneurysm 
-inflammatory bowel disease
-ruptured spleen 
-ruptured ectopic pregnancy 
-abdominal abscess
-physical abuse
-sexual abuse
-perforated viscus such as gallbladder, appendix or peptic ulcer 
-diverticulitis 
-intestinal obstruction 
-urinary tract infection 
-constipation 
-intestinal ischemia 
-peritonitis 
-pancreatitis 
-irritable bowel syndrome 
-gastroenteritis