Tics convulsions and seizures are relativly common MCS reactions. May be the CNS and biody's detox sytems fighting for scarce nutrients, eventually both loose. Taurine and GABA have helped me, along with the other things mentioned on this site, esp Hulda Clark cleanses. Also did extensive research on brain chemistry and used other suppliments to recover from above as well as depresion, anxiety, bipolar, halucinations WITHOUT PRESCRIPTION MEDS. We are wonderfully made, with many back up systems, and heal when given a chance to.