An 18 year old girl presents with severe generalized abdominal pain and vomiting. She is hysterical, appearing to hear voices, agitated, and almost delirious. The patient also notes nausea, constipation, urinary retention, dysuria, and proximal leg weakness. For the last few days, she has not eaten very much due to social stressors. Past medical history is significant for long-standing anxiety and hypertension. She has had one previous episode of a similar attack lasting for days and it was associated with a seizure. There seems to be some family history of this disease, though the patient cannot recall what it's called. On exam, she is hypertensive and tachycardic. Her skin looks normal. You make the diagnosis by urine testing.
Challenge: What is the diagnosis?