​Differential diagnosis of Acute Intermittent Porphyria

​Differential diagnosis of Acute Intermittent Porphyria:
-SIADH
-Guillain Barre Syndrome 
-lead poisoning 
-heavy metal poisoning 
-polyneuropathy 
-psychosis
-dark urine 
-acute abdominal pain due to appendicitis, peptic ulcer disease, cholecystitis, ruptured ectopic pregnancy, familial Mediterranean fever,