A 14-year-old student is brought to the emergency room complaining of severe abdominal pain. Diagnostic tests reveal high serum levels of δ-aminolevulinate and porphobilinogen and low level of uroporphyrinogen I synthetase in urine.
Given the above test results, which of the following symptoms would be presented in this case?
C- Neuropsychiatric disturbances
D- Stiff neck