The acute, r hepatic, porphyrias rmrl affect th nervous tm, rultng n abdominal n, vmtng, acute nurth, mul wkn, seizures, nd mntl dturbn, including hlluntn, drn, anxiety, nd rn. Crd rrhthm nd tachycardia (ft hrt rate) m develop th autonomic nrvu tm affected. Pain n b vr and can, n m , b both ut and hrn in ntur. Cnttn is fruntl present, th nrvu system f th gut affected, but diarrhea can l ur.